Skip to main content

Home/ science/ Group items tagged galaxies

Rss Feed Group items tagged

Charles Daney

Most Distant Galaxy With Big Black Hole Discovered -- Space.com - 0 views

  •  
    The most distant known galaxy to host a supermassive black hole has been discovered in a galaxy that formed in the early history of the universe. The galaxy, as large as the Milky Way, is about 12.8 billion light-years away and harbors a supermassive black hole that contains at least a billion times as much matter as our sun.
Charles Daney

Astronomers Find Hyperactive Galaxies in the Early Universe - NASA - 0 views

  •  
    Looking almost 11 billion years into the past, astronomers have measured the motions of stars for the first time in a very distant galaxy and clocked speeds upwards of one million miles per hour, about twice the speed of our Sun through the Milky Way. The fast-moving stars shed new light on how these distant galaxies, which are a fraction the size of our Milky Way, may have evolved into the full-grown galaxies seen around us today. The results will be published in the August 6, 2009 issue of the journal Nature, with a companion paper in the Astrophysical Journal.
thinkahol *

Most Distant Galaxy Ever Confirmed | Wired Science | Wired.com - 0 views

  •  
    Astronomers' new observations have spotted the most distant galaxy ever seen. The galaxy's light comes from about 13.1 billion light-years away, making it one of the first galaxies to form after the Big Bang.
Charles Daney

Phenomenology, Fundamental Physics and Inconsistent Truths : Dynamics of Cats - 0 views

  •  
    The paper, Gentile et al, Nature, 461, 627, 2009, discusses the apparent constant surface mass density of disk galaxies in the centers, over several orders of magnitude in mass and luminosity of galaxies, and that the density, when fit with a cold dark matter inspired density profile for the galaxy halos, leads one to conclude the break radius is such that the inferred cold dark matter density decreases at a radius corresponding to an apparently near constant acceleration.
Janos Haits

Public Release of a Queryable Database of Galaxies in the Milennium Simulation - 0 views

  •  
    Halo and Galaxy Formation Histories from the Millennium Simulation Public release of a VO-oriented and SQL-queryable database for studying the evolution of galaxies in the ΛCDM cosmogony
Charles Daney

Galactic evolution: more data, no more answers - Ars Technica - 0 views

  •  
    New results from digital sky surveys highlight more inconsistencies in our understanding of early galaxies, which, in contrast to today's galaxies, were compact and rapidly moving.
Skeptical Debunker

Astronomically large lenses measure the age and size of the universe (w/ Video) - 0 views

  •  
    Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on a par with other techniques. The measurement determines a value for the Hubble constant, which indicates the size of the universe, and confirms the age of the universe as 13.75 billion years old, within 170 million years. The results also confirm the strength of dark energy, responsible for accelerating the expansion of the universe.
Charles Daney

Farthest Galaxy Cluster Ever Detected | Wired.com - 0 views

  •  
    Captured by NASA's Chandra X-ray Observatory and combined with data from infrared and optical telescopes, this image shows the farthest galaxy cluster ever detected. Designated JKCS041, the cluster is located 10.2 billion light-years from Earth, beating the previous distance record by a billion light-years. Astronomers think JKCS041 formed just about as early as was feasible.
Charles Daney

Hubble Goes Deep, Finds Farthest Galaxies Yet | Wired.com - 0 views

  •  
    Just days after NASA released the first cosmic dreamscapes taken by the newly refurbished Hubble Space Telescope three teams of astronomers have used the rejuvenated observatory to find what appears to be a bounty of the most distant galaxies known.
Janos Haits

spaceengine - Home page - 0 views

  •  
    SpaceEngine - is a free space simulation software that lets you explore the universe in three dimensions, starting from planet Earth to the most distant galaxies. Areas of the known universe are represented using actual astronomical data, while regions uncharted by human astronomy are generated procedurally. Millions of galaxies, trillions of stars, countless planets!
Charles Daney

Galaxies That Go The Distance / Science News - 0 views

  •  
    Just days after NASA released the first cosmic dreamscapes taken by the newly refurbished Hubble Space Telescope three teams of astronomers have used the rejuvenated observatory to find what appears to be a bounty of the most distant galaxies known.
thinkahol *

Hubble constant: A new way to measure the expansion of the universe - 0 views

  •  
    ScienceDaily (July 27, 2011) - Using a measurement of the clustering of the galaxies surveyed, plus other information derived from observations of the early universe, researchers have measured the Hubble constant with an uncertainly of less than 5 percent. The new work draws on data from a survey of more than 125,000 galaxies.
Charles Daney

Dark Energy Hunters Catch a Wave - Wired.com - 0 views

  •  
    A new project to create a 3D map of space so large that scientists can find a 500 million-light-year-size remnant from the early universe inside it began operation last month. The Baryon Oscillation Spectroscopic Survey opened its eyes to the universe, taking in data from hundreds of galaxies and quasars in the constellation Aquarius, from its perch on the Apache Point Observatory in New Mexico. Eventually, it will image two million galaxies and quasars.
Charles Daney

New Record For Most Distant Galaxy Cluster -- Space.com - 0 views

  •  
    The most distant known galaxy cluster has been discovered with NASA's Chandra X-ray Observatory. The cluster, known as JKCS041, is located about 10.2 billion light-years away and is observed as it was when the universe was only about a quarter of its present age. It beats the previous record holder, XMMXCS J2215.9-1738, by about a billion light-years.
ammarqbz

Galaxy clusters - 0 views

  •  
    Galaxy clusters
Charles Daney

In Search of Antimatter Galaxies - 0 views

  •  
    In addition to sensing distant galaxies made entirely of antimatter, the AMS will also test leading theories of dark matter, an invisible and mysterious substance that comprises 83 percent of the matter in the universe. And it will search for strangelets, a theoretical form of matter that's ultra-massive because it contains so-called strange quarks
Charles Daney

Where Did You Get Those Lovely Spirals? -- Berardelli 2009 (821): 2 -- ScienceNOW - 0 views

  •  
    Researchers figure out how galaxies like the Milky Way formed
Charles Daney

How does your galaxy grow? - New Scientist - 0 views

  •  
    Together with ever-improving observations of the early universe, grand simulations are beginning to paint a single, unifying picture of why the universe looks as it does. At its heart is an almost invisible scaffold of dark matter and cold gas on which the visible constituents of the universe hang - a structure known as the cosmic web.
Erich Feldmeier

Marie Dacke: Navigation - Mistkäfer orientieren sich an der Milchstraße - Wis... - 0 views

  •  
    @Spatzlhirn "Afrikanische Mistkäfer (Scarabaeus satyrus) orientieren sich nicht nur an der Sonne, dem Mond und der Polarisation des Tageslichtes. Anders als viele andere Insekten nutzen sie für die Navigation offenbar auch die Sterne. Genau genommen ist es die Milchstraße - jener Teil unserer Galaxie, der als helles Band am nächtlichen Himmel zu sehen ist - um in mondlosen Nächten ihren Weg zu finden. Das berichten Marie Dacke von der Universität Lund und ihre Kollegen aus Schweden und Südafrika im Fachjournal Current Biology (online)."
Janos Haits

CHB - 0 views

  •  
    Come work with us Interested in working with researchers from different disciplines within the Harvard, MIT and Broad community and an unique opportunity to participate in world-class research to make an impact on human health? Come work with us! We are looking for a computational biologists to handle data from a wide variety of experimental methods, focusing on next-gen sequencing technologies. Keep Reading...  SCDE is live The Stem Cell Discovery Engine (SCDE) is an integrated platform that allows users to consistently describe, share and compare cancer and tissue stem cell data. It is made up of an online database of curated experiments coupled to a customized instance of the Galaxy analysis engine with tools for gene list manipulation and molecular profile comparisons. The SCDE currently contains more than 50 stem cell-related experiments. Each has been manually curated and encoded using the ISA-Tab standard to ensure the quality of the data and its annotation. Keep Reading...  The Center for Health Bioinformatics at the Harvard School of Public Health provides consults to researchers for the management, integration and contextual analysis of biological high-throughput data. We are a member of the Center for Stem Cell Bioinformatics, the Environmental Statistics and Bioinformatics Core at the Harvard NIEHS Center for Environmental Health and the Genetics & Bioinformatics Consulting group for Harvard Catalyst and work closely with our colleagues in the Department of Biostatistics and the Program in Quantitative Genomics to act as a single point of contact for computational biology,
1 - 20 of 33 Next ›
Showing 20 items per page