UTA motivation 2022

 Delving into an Astronomical Treasure Trove

This image from the NASA/ESA Hubble Space Telescope captures the sparkling globular cluster NGC 6569 in the constellation Sagittarius. Hubble explored the heart of this cluster with both its Wide Field Camera 3 and Advanced Camera for Surveys, revealing a glittering hoard of stars in this astronomical treasure trove.

Globular clusters are stable, tightly bound clusters containing tens of thousands to millions of stars, and are associated with all types of galaxies. The intense gravitational attraction of these closely packed clusters of stars means that globular clusters have a regular spherical shape with a densely populated center — as can be seen in the heart of this star-studded image.

This observation comes from an investigation of globular clusters which lie close to the center of the Milky Way. These objects have been avoided in previous surveys, as the dust spread throughout the center of our galaxy blocks light from these globular clusters and alters the colors of the stars residing in them. The last factor is particularly important for astronomers studying stellar evolution, as the colors of stars can give astronomers insights into their ages, compositions, and temperatures.

The astronomers who proposed these observations combined data from Hubble with data from astronomical archives, allowing them to measure the ages of globular clusters including NGC 6569. Their research also provided insights into the structure and density of globular clusters towards the center of the Milky Way.

Credit: ESA/Hubble & NASA, R. Cohen

Source: https://esahubble.org/images/potw2226a/

UTA Motivation 2022

 An infrared view of Saturn

In honor of the NASA/ESA Hubble Space Telescope's eighth anniversary, we have gift wrapped Saturn in vivid colors. Actually, this image is courtesy of the new Near Infrared Camera and Multi-Object Spectrometer (NICMOS), which has taken its first peek at Saturn. The false-color image - taken Jan. 4, 1998 - shows the planet's reflected infrared light. This view provides detailed information on the clouds and hazes in Saturn's atmosphere.


This false-color image of Saturn, taken with Hubble's Near Infrared Camera and Multi-Object Spectrometer (NICMOS), shows the planet's reflected infrared light. This view provides detailed information on the clouds and hazes in Saturn's atmosphere. The blue colors indicate a clear atmosphere down to a main cloud layer. Different shadings of blue indicate variations in the cloud particles, in size or chemical composition. The cloud particles are believed to be ammonia ice crystals. Most of the northern hemisphere that is visible above the rings is relatively clear. The dark region around the south pole at the bottom indicates a big hole in the main cloud layer. The green and yellow colors indicate a haze above the main cloud layer. The haze is thin where the colors are green but thick where they are yellow. Most of the southern hemisphere (the lower part of Saturn) is quite hazy. These layers are aligned with latitude lines, due to Saturn's east-west winds. The red and orange colors indicate clouds reaching up high into the atmosphere. Red clouds are even higher than orange clouds. The densest regions of two storms near Saturn's equator appear white.

Credit: Erich Karkoschka (University of Arizona), and NASA/ESA

Source:https://esahubble.org/images/opo9818a/

UTA Motivation 2022

 Artist’s Impression of GNz7q

An international team of astronomers using archival data from the NASA/ESA Hubble Space Telescope and other space- and ground-based observatories have discovered a unique object in the distant, early Universe that is a crucial link between young star-forming galaxies and the earliest supermassive black holes. This object is the first of its kind to be discovered so early in the Universe’s history, and had been lurking unnoticed in one of the best-studied areas of the night sky.

Current theories predict that supermassive black holes begin their lives in the dust-shrouded cores of vigorously star-forming “starburst” galaxies before expelling the surrounding gas and dust and emerging as extremely luminous quasars. Whilst they are extremely rare, examples of both dusty starburst galaxies and luminous quasars have been detected in the early Universe. The team believes that GNz7q could be the “missing link” between these two classes of objects.

Credit:

ESA/Hubble, N. Bartmann

Source:https://esahubble.org/images/heic2204a/

UTA Motivation 2022

Star Birth In The Extreme

About the Image

NASA press release

Id: heic0707a\

Type: Observation

Release date: 24 April 2007, 15:00

Related releases: heic0707

Size: 29566 x 14321 px

About the Object

Name: Carina Nebula, NGC 3372

Type: Milky Way : Nebula

Distance: 7500 light years

Constellation: Carina

Category: Anniversary

Nebulae

Hubble's view of the Carina Nebula shows star birth in a new level of detail. The fantasy-like landscape of the nebula is sculpted by the action of outflowing winds and scorching ultraviolet radiation from the monster stars that inhabit this inferno. In the process, these stars are shredding the surrounding material that is the last vestige of the giant cloud from which the stars were born.

The immense nebula is an estimated 7,500 light-years away in the southern constellation Carina the Keel (of the old southern constellation Argo Navis, the ship of Jason and the Argonauts, from Greek mythology).

This image is a mosaic of the Carina Nebula assembled from 48 frames taken with Hubble Space Telescope's Advanced Camera for Surveys. The Hubble images were taken in the light of ionized hydrogen. Colour information was added with data taken at the Cerro Tololo Inter-American Observatory in Chile. Red corresponds to sulfur, green to hydrogen, and blue to oxygen emission.

Credit:

NASA, ESA, N. Smith (University of California, Berkeley), and The Hubble Heritage Team (STScI/AURA)

Source: https://esahubble.org/images/heic0707a/

UTA Motivation 2022

Cosmic Fireworks in Ultraviolet

Telescopes, including Hubble, have monitored the Eta Carinae star system for more than two decades. It has been prone to violent outbursts, including an episode in the 1840s during which ejected material formed the bipolar bubbles seen here.

Now, using Hubble’s Wide Field Camera 3 to probe the nebula in ultraviolet light, astronomers have uncovered the glow of magnesium embedded in warm gas (shown in blue) in places they had not seen it before. The luminous magnesium resides in the space between the dusty bipolar bubbles and the outer shock-heated nitrogen-rich filaments (shown in red). 

The streaks visible in the blue region outside the lower-left lobe are a striking feature of the image. These streaks are created when the star’s light rays poke through the dust clumps scattered along the bubble’s surface. Wherever the ultraviolet light strikes the dense dust, it leaves a long, thin shadow that extends beyond the lobe into the surrounding gas.

Eta Carinae resides 7500 light-years away.

Credit:
NASA, ESA, N. Smith (University of Arizona, Tucson), and J. Morse (BoldlyGo Institute, New York)

Source: https://esahubble.org/images/heic1912a/

PTSD Screening Day: Knowing is the first step

 

What is PTSD?

PTSD is a mental health problem that some people develop after experiencing or witnessing a life-threatening event, like combat, a natural disaster, a car accident or sexual assault. While most people experience trauma, not all of them develop PTSD.

After a trauma, it’s common to relive the traumatic event, avoid reminders of it, have more negative thoughts and feelings, or feel on edge or on the lookout for danger.

People who experience these symptoms longer than a month may have PTSD. While the only way to know for sure is to talk to a professional, like a primary care doctor or mental health care provider, there are self-screen questionnaires for PTSD.

“The message we want to share about PTSD is one of hope,” says Dr. Paula Schnurr, executive director of the National Center for PTSD. “PTSD is treatable and it’s a normal response to trauma, not a sign of weakness. If you have PTSD, you can get help. Taking a PTSD self-screen is a step toward recovery.”

What is a PTSD screen?

A PTSD screen, or screening questionnaire, is a short set of questions. The screen helps you understand if your feelings and behaviors are related to PTSD. One screening questionnaire is the Primary Care PTSD Checklist, or PC-PTSD-5. The PC-PTSD-5 is only five questions. After confirming you experienced a serious trauma, it asks how that event may have affected the way you’ve felt or acted in the past month.

After taking the PC-PTSD-5, you add up your “yes” answers. If your score is three or more, you may have PTSD. The next step is to schedule an appointment to speak with a health care provider.

If you answered yes to one or two questions, and are bothered by your symptoms, you can still make an appointment. A health care provider can help you make a plan to manage the things that continue to bother you since the trauma.

“Screening is an important first step, but it’s just the beginning,” says Schnurr. “Anyone can get PTSD. And everyone can get treatment for PTSD.”
Next steps & helpful resources

While June 27th is PTSD Screening Day, the PTSD self-screen is always available, so you don’t need to wait. If the results of your screen suggest you may have PTSD, you’ll need to find a mental health care provider. There are Veteran-specific services at every VA Medical Center. And if you’re not sure how to start the conversation with a provider, you can tell them you completed a PTSD screen or take a copy with you.

If you’re not ready to reach out to a provider, there are resources that can help you learn more. The Understanding PTSD and PTSD Treatment booklet is a good place to start. You can also hear from Veterans who turned their lives around with PTSD treatment at AboutFace. The Veterans who share their stories on the site have been there.

Maybe you are concerned about a family member or friend. If you’ve noticed symptoms of PTSD or a change in behavior, you can encourage them to screen for PTSD or support them as they go through treatment for PTSD. The Understanding PTSD: A Guide for Family and Friends booklet may be helpful.
Family and friends great source of comfort and support

“Oftentimes family and friends will notice a change in a trauma survivor, and they can be a great source of comfort and support,” says Schnurr. “It’s very common for Veterans to enter treatment because of their family.”

No matter what type of trauma you experienced or when you experienced that trauma, treatment can help. If you think you’re experiencing symptoms of PTSD, take the self-screen and reach out to a provider today.

As Army Veteran Penny Anderson notes, “Regardless of how you may have gotten PTSD, you have the ability to go and get help. And to do that, you’re going to set yourself free. You’re going to have the life that you deserve.”

Visit the National Center for PTSD’s website to learn more about PTSD treatment, PTSD Awareness Month, and PTSD Screening Day.

Source: https://blogs.va.gov/VAntage/104090/ptsd-screening-day-knowing-is-the-first-step/?utm_source=middle&utm_medium=email&utm_campaign=VetResources&utm_id=22JUN2022

UTA Motivation 2022

Hubble image of the Ring Nebula (Messier 57)

This new image shows the dramatic shape and color of the Ring Nebula, otherwise known as Messier 57.

From Earth’s perspective, the nebula looks like a simple elliptical shape with a shaggy boundary. However, new observations combining existing ground-based data with new NASA/ESA Hubble Space Telescope data show that the nebula is shaped like a distorted doughnut. This doughnut has a rugby-ball-shaped region of lower-density material slotted into in its central “gap”, stretching towards and away from us.

Credit:

NASA, ESA, and C. Robert O’Dell (Vanderbilt University).

Source: https://esahubble.org/images/heic1310a/

UTA motivation 2022

 

New infrared view of the Horsehead Nebula  Hubble’s 23rd anniversary image

This new Hubble image, captured and released to celebrate the telescope’s 23rd year in orbit, shows part of the sky in the constellation of Orion (The Hunter). Rising like a giant seahorse from turbulent waves of dust and gas is the Horsehead Nebula, otherwise known as Barnard 33.

This image shows the region in infrared light, which has longer wavelengths than visible light and can pierce through the dusty material that usually obscures the nebula’s inner regions. The result is a rather ethereal and fragile-looking structure, made of delicate folds of gas — very different to the nebula’s appearance in visible light.

Credit:

NASA, ESA, and the Hubble Heritage Team (AURA/STScI)

Source:https://esahubble.org/images/heic1307a/

UTA Motivation 2022

Hubble's newest camera takes a deep look at two merging galaxies

 Advanced Camera for Surveys (ACS), the newest camera on NASA/ESA Hubble Space Telescope, has captured a spectacular pair of galaxies engaged in a celestial dance of cat and mouse or, in this case, mouse and mouse.

Located 300 million light-years away in the constellation Coma Berenices, the colliding galaxies have been nicknamed "The Mice" because of the long tails of stars and gas emanating from each galaxy. Otherwise known as NGC 4676, the pair will eventually merge into a single giant galaxy.

Credit: NASA, Holland Ford (JHU), the ACS Science Team and ESA
Source: https://esahubble.org/images/heic0206b/

 

UTA Motivation 2022

 Wide-field ground-based astrophoto 

of the Veil Nebula

A wide-field image of the Veil Nebula, made as a colour composite from individual exposures from the Digitized Sky Survey 2. The field of view is 4.2 x 4.4 degrees.

Credit: NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and the Digitized Sky Survey 2. Acknowledgment: J. Hester (Arizona State University) and Davide De Martin (ESA/Hubble)

Source: https://esahubble.org/images/heic0712g/

UTA Motivation 2022

A Cosmic Lightsabre

The two lightsabre-like streams crossing the image are jets of energized gas, ejected from the poles of a young star. If the jets collide with the surrounding gas and dust they can clear vast spaces, and create curved shock waves, seen as knotted clumps called Herbig-Haro objects.

Credit:

ESA/Hubble & NASA, D. Padgett (GSFC), T. Megeath (University of Toledo), and B. Reipurth (University of Hawaii)

Source:https://esahubble.org/images/heic1526a/

UTA Motivation 2022

The Bubble Nebula

The Bubble Nebula, also known as NGC 7635, is an emission nebula located 8 000 light-years away. This stunning new image was observed by the NASA/ESA Hubble Space Telescope to celebrate its 26th year in space.

Credit:

NASA, ESA, Hubble Heritage Team

Source:https://esahubble.org/images/heic1608a/

UTA Motivation 2022

Star on a Hubble diet

The star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 that extends one degree on the sky in the direction of the Scorpius constellation. Part of the nebula is ionised by the youngest (bluest) heavy stars in Pismis 24. The intense ultraviolet radiation from the blazing stars heats the gas surrounding the cluster and creates a bubble in NGC 6357. The presence of these surrounding gas clouds makes probing into the region even harder.

One of the top candidates for the title of "Milky Way stellar heavyweight champion" was, until now, Pismis 24-1, a bright young star that lies in the core of the small open star cluster Pismis 24 (the bright stars in the Hubble image) about 8,000 light-years away from Earth. Pismis 24-1 was thought to have an incredibly large mass of 200 to 300 solar masses. New NASA/ESA Hubble measurements of the star, have, however, resolved Pismis 24-1 into two separate stars, and, in doing so, have "halved" its mass to around 100 solar masses.

Credit:

NASA, ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain). Acknowledgement: Davide De Martin (ESA/Hubble)

Source:https://esahubble.org/images/heic0619a/

UTA Motivation 2022

Giant 'twisters' in the Lagoon Nebula

This Hubble Space Telescope (HST) image reveals a pair of one-half light-year long interstellar 'twisters' - eerie funnels and twisted-rope structures - in the heart of the Lagoon Nebula (Messier 8) which lies 5,000 light-years away in the direction of the constellation Sagittarius.

Credit:
A. Caulet (ST-ECF, ESA) and NASA
Source: https://esahubble.org/images/opo9638b/

UTA Motivation 2022

Hubble's 28th birthday picture

 The Lagoon Nebula

To celebrate its 28th anniversary in space the NASA/ESA Hubble Space Telescope took this amazing and colorful image of the Lagoon Nebula. The whole nebula, about 4000 light-years away, is an incredible 55 light-years wide and 20 light-years tall. This image shows only a small part of this turbulent star-formation region, about four light-years across.

This stunning nebula was first catalogued in 1654 by the Italian astronomer Giovanni Battista Hodierna, who sought to record nebulous objects in the night sky so they would not be mistaken for comets. Since Hodierna’s observations, the Lagoon Nebula has been photographed and analyzed by many telescopes and astronomers all over the world.

The observations were taken by Hubble’s Wide Field Camera 3 between 12 February and 18 February 2018.

Credit:

NASA, ESA, STScI
Source:https://esahubble.org/images/heic1808a/

UTA Motivation 2022

 

Tapestry of Blazing Starbirth

This image is one of the most photogenic examples of the many turbulent stellar nurseries the NASA/ESA Hubble Space Telescope has observed during its 30-year lifetime. The portrait features the giant nebula NGC 2014 and its neighbour NGC 2020 which together form part of a vast star-forming region in the Large Magellanic Cloud, a satellite galaxy of the Milky Way, approximately 163 000 light-years away.

Credit:

NASA, ESA, and STScI

Source:https://esahubble.org/images/heic2007a/

UTA Motivation 2022

Mammoth Stars Seen by Hubble

 

The image shows a pair of colossal stars, WR 25 and Tr16-244, located within the open cluster Trumpler 16. This cluster is embedded within the Carina Nebula, an immense cauldron of gas and dust that lies approximately 7500 light-years from Earth in the constellation of Carina, the Keel. WR 25 is the brightest, situated near the centre of the image. The neighbouring Tr16-244 is the third brightest, just to the upper left of WR 25. The second brightest, to the left of WR 25, is a low mass star located much closer to the Earth than the Carina Nebula.

Credit:


NASA, ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)

Source: https://esahubble.org/images/heic0822a/

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UTA Motivation 2022

Revisiting the Veil Nebula

This image shows a small section of the Veil Nebula, as it was observed by the NASA/ESA Hubble Space Telescope. This section of the outer shell of the famous supernova remnant is in a region known as NGC 6960 or — more colloquially — the Witch’s Broom Nebula.

Credit:


NASA, ESA, Hubble Heritage Team

Source: https://esahubble.org/images/heic1520a/

UTA Motivation 2022

The Twin Jet Nebula

The Twin Jet Nebula, or PN M2-9, is a striking example of a bipolar planetary nebula. Bipolar planetary nebulae are formed when the central object is not a single star, but a binary system, Studies have shown that the nebula’s size increases with time, and measurements of this rate of increase suggest that the stellar outburst that formed the lobes occurred just 1200 years ago.

Credit:

ESA/Hubble & NASA

Acknowledgement: Judy Schmidt

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UTA Motivation 2022

Hiding in Plain Sight

The muted red tones of the globular cluster Liller 1 are partially obscured in this image by a dense scattering of piercingly blue stars. In fact, it is thanks to Hubble’s Wide Field Camera 3 (WFC3) that we are able to see Liller 1 so clearly in this image, because the WFC3 is sensitive to wavelengths of light that the human eye cannot detect. Liller 1 is only 30 000 light-years from Earth — relatively neighbourly in astronomical terms — but it lies within the Milky Way’s ‘bulge’, the dense and dusty region at our galaxy’s centre. Because of that, Liller 1 is heavily obscured from view by interstellar dust, which scatters visible light (particularly blue light) very effectively. Fortunately, some infrared and red visible light are able to pass through these dusty regions. WFC3 is sensitive to both visible and near-infrared (infrared that is close to the visible) wavelengths, allowing us to see through the obscuring clouds of dust, and providing this spectacular view of Liller 1.

Liller 1 is a particularly interesting globular cluster, because unlike most of its kind, it contains a mix of very young and very old stars. Globular clusters typically house only old stars, some nearly as old as the Universe itself. Liller1 instead contains at least two distinct stellar populations with remarkably different ages: the oldest one is 12 billion years old and the youngest component is just 1-2 billion years old. This led astronomers to conclude that this stellar system was able to form stars over an extraordinary long period of time.
Links
Source Link: https://esahubble.orgVideo of A Hiding in Plain Sight
Credit:
ESA/Hubble & NASA, F. Ferraro

UTA Motivation 2022

 

This image from the NASA/ESA Hubble Space Telescope shows the barred spiral galaxy NGC 7496, which lies over 24 million light-years away in the constellation Grus. This constellation, whose name is Latin for crane, is one of four constellations collectively known as the Southern Birds. The others are Pavo, Phoenix and Tucana, which depict a peacock, phoenix, and toucan respectively. The rest of the night sky is also home to a flock of ornithological constellations, including an eagle (Aquilla), swan (Cygnus), crow (Corvus), and dove (Columba).


This image comes from a collection of observations delving into the relationship between young stars and the cold, dense clouds of gas in which they form. In addition to observations with Hubble’s Wide Field Camera 3 and Advanced Camera for Surveys, the astronomers behind this project gathered data using the Atacama Large Millimeter/submillimeter Array (ALMA), one of the largest radio telescopes in the world.

As well as shedding light on the speed and efficiency of star formation in a variety of galactic environments, this project is also creating a treasury of data incorporating both Hubble and ALMA observations. This treasure trove of data from two of the world’s most capable observatories will contribute to wider research into star formation, as well as paving the way for future science with the James Webb Space Telescope.

Credit:


ESA/Hubble & NASA, J. Lee and the PHANGS-HST Team
Acknowledgement: J. Schmidt
https://esahubble.org/images/potw2222a/

UTA Motivation 2022

Huge waves are sculpted in this two-lobed nebula some 3000 light-years away in the constellation of Sagittarius. This warm planetary nebula harbours one of the hottest stars known and its powerful stellar winds generate waves 100 billion kilometers high. The waves are caused by supersonic shocks, formed when the local gas is compressed and heated in front of the rapidly expanding lobes. The atoms caught in the shock emit the spectacular radiation seen in this image.

Background image Credit:

ESA & Garrelt Mellema (Leiden University, the Netherlands)

UTA Motivation 2022

 

UTA Motivation 2022

 

UTA Motivation 2022