PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

The rose-red glow of star formation

The rose-red glow of star formation
2011-03-31
(Press-News.org) The object dominating this image may resemble a pool of spilled blood, but rather than being associated with death, such regions of ionised hydrogen -- known as HII regions -- are sites of creation with high rates of recent star birth. NGC 371 is an example of this; it is an open cluster surrounded by a nebula. The stars in open clusters all originate from the same diffuse HII region, and over time the majority of the hydrogen is used up by star formation, leaving behind a shell of hydrogen such as the one in this image, along with a cluster of hot young stars.

The host galaxy to NGC 371, the Small Magellanic Cloud, is a dwarf galaxy a mere 200 000 light-years away, which makes it one of the closest galaxies to the Milky Way. In addition, the Small Magellanic Cloud contains stars at all stages of their evolution; from the highly luminous young stars found in NGC 371 to supernova remnants of dead stars. These energetic youngsters emit copious amounts of ultraviolet radiation causing surrounding gas, such as leftover hydrogen from their parent nebula, to light up with a colourful glow that extends for hundreds of light-years in every direction. The phenomenon is depicted beautifully in this image, taken using the FORS1 instrument on ESO's Very Large Telescope (VLT).

Open clusters are by no means rare; there are numerous fine examples in our own Milky Way. However, NGC 371 is of particular interest due to the unexpectedly large number of variable stars it contains. These are stars that change in brightness over time. A particularly interesting type of variable star, known as slowly pulsating B stars, can also be used to study the interior of stars through asteroseismology [1], and several of these have been confirmed in this cluster. Variable stars play a pivotal role in astronomy: some types are invaluable for determining distances to far-off galaxies and the age of the Universe.

The data for this image were selected from the ESO archive by Manu Mejias as part of the Hidden Treasures competition [2]. Three of Manu's images made the top twenty; his picture of NGC 371 was ranked sixth in the competition.



INFORMATION:

Notes

[1] Asteroseismology is the study of the internal structure of pulsating stars by looking at the different frequencies at which they oscillate. This is a similar approach to the study of the structure of the Earth by looking at earthquakes and how their oscillations travel through the interior of the planet.

[2] ESO's Hidden Treasures 2010 competition gave amateur astronomers the opportunity to search through ESO's vast archives of astronomical data, hoping to find a well-hidden gem that needed polishing by the entrants. Participants submitted nearly 100 entries and ten skilled people were awarded some extremely attractive prizes, including an all expenses paid trip for the overall winner to ESO's Very Large Telescope (VLT) on Cerro Paranal, in Chile, the world's most advanced optical telescope. The ten winners submitted a total of 20 images that were ranked as the highest entries in the competition out of the near 100 images.

More information

ESO, the European Southern Observatory, is the foremost intergovernmental astronomy organisation in Europe and the world's most productive astronomical observatory. It is supported by 15 countries: Austria, Belgium, Brazil, the Czech Republic, Denmark, France, Finland, Germany, Italy, the Netherlands, Portugal, Spain, Sweden, Switzerland and the United Kingdom. ESO carries out an ambitious programme focused on the design, construction and operation of powerful ground-based observing facilities enabling astronomers to make important scientific discoveries. ESO also plays a leading role in promoting and organising cooperation in astronomical research. ESO operates three unique world-class observing sites in Chile: La Silla, Paranal and Chajnantor. At Paranal, ESO operates the Very Large Telescope, the world's most advanced visible-light astronomical observatory and VISTA, the world's largest survey telescope. ESO is the European partner of a revolutionary astronomical telescope ALMA, the largest astronomical project in existence. ESO is currently planning a 42-metre European Extremely Large optical/near-infrared Telescope, the E-ELT, which will become "the world's biggest eye on the sky".

Contacts

Richard Hook
ESO, La Silla, Paranal, E-ELT and Survey Telescopes Press Officer
Garching bei München, Germany
Tel: +49 89 3200 6655
Email: rhook@eso.org

[Attachments] See images for this press release:
The rose-red glow of star formation

ELSE PRESS RELEASES FROM THIS DATE:

Federal Crackdown on Offshore Accounts Continues

2011-03-31
From President Obama's earliest days in office, he made it clear that the administration would crack down on people who had previously evaded taxes through undeclared offshore bank accounts. To encourage people with undeclared accounts to come forward voluntarily, the administration offered a limited amnesty program. Through the amnesty program, individuals with past-due taxes could disclose their unreported offshore assets and pay the back taxes while avoiding criminal charges and facing limited civil penalties. Since the announcement of the initial amnesty program, ...

Using Lifetime Gifts to Shift Assets Out of Estates

2011-03-31
Congress recently raised the lifetime gift tax exemption from $1 million to $5 million, or $10 million for married couples. This higher exemption amount provides an incentive for some people to give away their money in their lifetimes, rather than waiting until after they are gone. Not only does lifetime giving offer the emotional benefit of seeing how the money is used during the grantor's lifetime, it also enables the grantor to shift assets out of his or her estate tax-free. Increased Exemptions, Increased Ability to Shield Assets From Taxes Following a year ...

Researchers find possible clues to tamoxifen resistance in breast cancer patients

2011-03-31
Breast cancer patients who become resistant to tamoxifen may have low levels of a protein called Rho GDI-alpha, according to a study published online March 30 in the Journal of the National Cancer Institute. Women whose tumors have estrogen receptors (ERs) often take tamoxifen after surgery to prevent recurrence of the cancer and keep it from metastasizing to other parts of the body. Some patients, however, become resistant to the drug even though their tumors remain ER-positive. To explore the mechanisms of this resistance, Suzanne Fuqua, Ph.D., professor of medicine ...

Scientists unlock mystery of how the 22nd amino acid is produced

2011-03-31
COLUMBUS, Ohio – The most recently discovered amino acid, pyrrolysine, is produced by a series of just three chemical reactions with a single precursor – the amino acid lysine, according to new research. Scientists at Ohio State University used mass spectrometry and a series of experiments to discover how cells make the amino acid, a process that until now had been unknown. They confirmed that pyrrolysine is made from enzymatic reactions with two lysine molecules – a surprising finding, given that some portions of its structure suggested to researchers that it might ...

Airline Safety Statistics Suggest Domestic Progress, Global Challenges

2011-03-31
While recent years have presented many challenges for Americans, one news item from last year was welcome: no fatal U.S. airline crashes occurred in 2010. Over the past two decades, the National Transportation Safety Board's statistics for major commercial aircraft accidents involving fatalities show a steady decrease from the early 1990s, despite a 50 percent increase in aircraft hours flown. Aviation accident fatalities have never been worse than one per 15 million passengers since the devastating year of 2001. U.S. airlines have also recorded zero fatalities in three ...

UCSF researchers identify promising new treatment for childhood leukemia

2011-03-31
An experimental drug lessens symptoms of a rare form of childhood leukemia and offers significant insight into the cellular development of the disease, according to findings from a new UCSF study. The mouse model research could spearhead the development of new leukemia therapies and paves the way for future clinical trials in humans. "Although this drug did not produce a cure, it alleviated the symptoms of leukemia as long as the treatment was continued and delayed the development of a more aggressive disease," said senior author Benjamin Braun, MD, PhD, a pediatric ...

Using live worms as bait: Voters swayed by interactive 'worm' graph during election debate.

2011-03-31
Research from Royal Holloway, University of London and the University of Bristol calls into question people's ability to form their own judgements about their preferred election candidate after finding voters could be heavily swayed by 'the worm' - a continuous response tracking measure this is increasingly being used in live election debates around the world. The study "Social Influence in Televised Election Debates: A Potential Distortion of Democracy" is published today (30 March) in the journal PLoS One. Televised election debates were introduced in the United ...

Horrible Trucking Accident on Indiana Highway Takes Three Lives

2011-03-31
On January 20, Chester Lee Mills Sr. was supposed to bury his wife, who had lost her battle with lung cancer. Instead, Mills was left to mourn the additional loss of his two children who died in a tragic truck accident en route to their stepmother's funeral. Amanda S. Mills, age 25; Logan R. Mills, age 21; and Anthony Suggs, age 25, were travelling to Georgia to attend the funeral when they were hit by a semi-truck after losing control of their car on icy roads. Witnesses said that the tractor-trailer turned over onto the passenger vehicle, pinning the three people in the ...

Scripps Research scientists: Sensory wiring for smells varies among individuals

2011-03-31
LA JOLLA, CA – March 30, 2011 – If, as Shakespeare's Juliet declared, a rose by any other name smells as sweet – to you and to me and to anyone else who sniffs it – then one might assume that our odor-sensing nerve cells are all wired in the same way. Alas, they are not, according to a new study from scientists at The Scripps Research Institute. The researchers developed a new virus-based technique for highlighting individual nerve pathways, then applied it to the olfactory systems of mice. They found that mouse olfactory neurons send signals to two key processing regions ...

Brain scientists offer medical educators tips on the neurobiology of learning

Brain scientists offer medical educators tips on the neurobiology of learning
2011-03-31
Everyone would like MDs to have the best education – and to absorb what they are taught. The lead article in the April 4 issue of the journal Academic Medicine* connects research on how the brain learns to how to incorporate this understanding into real world education, particularly the education of doctors. "Repetition, reward, and visualization are tried and true teaching strategies. Now, knowing what is happening in the brain will enhance teaching and learning," said Michael J. Friedlander, executive director of the Virginia Tech Carilion Research Institute (www.vtc.vt.edu/research/index.html) ...

LAST 30 PRESS RELEASES:

Breakthrough study reveals bumetanide treatment restores early social communication in fragile X syndrome mouse model

Neuroscience leader reveals oxytocin's crucial role beyond the 'love hormone' label

Twelve questions to ask your doctor for better brain health in the new year

Microelectronics Science Research Centers to lead charge on next-generation designs and prototypes

Study identifies genetic cause for yellow nail syndrome

New drug to prevent migraine may start working right away

Good news for people with MS: COVID-19 infection not tied to worsening symptoms

Department of Energy announces $179 million for Microelectronics Science Research Centers

Human-related activities continue to threaten global climate and productivity

Public shows greater acceptance of RSV vaccine as vaccine hesitancy appears to have plateaued

Unraveling the power and influence of language

Gene editing tool reduces Alzheimer’s plaque precursor in mice

TNF inhibitors prevent complications in kids with Crohn's disease, recommended as first-line therapies

Twisted Edison: Bright, elliptically polarized incandescent light

Structural cell protein also directly regulates gene transcription

Breaking boundaries: Researchers isolate quantum coherence in classical light systems

Brain map clarifies neuronal connectivity behind motor function

Researchers find compromised indoor air in homes following Marshall Fire

Months after Colorado's Marshall Fire, residents of surviving homes reported health symptoms, poor air quality

Identification of chemical constituents and blood-absorbed components of Shenqi Fuzheng extract based on UPLC-triple-TOF/MS technology

'Glass fences' hinder Japanese female faculty in international research, study finds

Vector winds forecast by numerical weather prediction models still in need of optimization

New research identifies key cellular mechanism driving Alzheimer’s disease

Trends in buprenorphine dispensing among adolescents and young adults in the US

Emergency department physicians vary widely in their likelihood of hospitalizing a patient, even within the same facility

Firearm and motor vehicle pediatric deaths— intersections of age, sex, race, and ethnicity

Association of state cannabis legalization with cannabis use disorder and cannabis poisoning

Gestational hypertension, preeclampsia, and eclampsia and future neurological disorders

Adoption of “hospital-at-home” programs remains concentrated among larger, urban, not-for-profit and academic hospitals

Unlocking the mysteries of the human gut

[Press-News.org] The rose-red glow of star formation