probing quasar environments with tunable filter
... MRC B1256-243 lack the sensitivity to probe deep into the quasar environment, but detect a number of extremely luminous objects. In BR B0019-1522, we show convincing evidence of a protocluster, including both galaxy and star formation rate densities an order of magnitude higher than that observed in ...
... MRC B1256-243 lack the sensitivity to probe deep into the quasar environment, but detect a number of extremely luminous objects. In BR B0019-1522, we show convincing evidence of a protocluster, including both galaxy and star formation rate densities an order of magnitude higher than that observed in ...
the stebbins galaxy: the origins of interstellar medium studies
... But in fact, interstellar matter and the reddening and extinction of starlight it causes are, as we will see, very significant. Why did Shapley conclude that extinction is negligible? His argument considered only three globular clusters: M3 and M13 are high in galactic latitude, +79° and +41° respec ...
... But in fact, interstellar matter and the reddening and extinction of starlight it causes are, as we will see, very significant. Why did Shapley conclude that extinction is negligible? His argument considered only three globular clusters: M3 and M13 are high in galactic latitude, +79° and +41° respec ...
A New Science Strategy for Space Astronomy and Astrophysics
... next decade,1 prepared by a committee under the leadership of John Bahcall. Like previous decadal studies in this field, the report identified in priority order the most important scientific programs and projects for both groundand space-based research. It recommended a single large initiative for s ...
... next decade,1 prepared by a committee under the leadership of John Bahcall. Like previous decadal studies in this field, the report identified in priority order the most important scientific programs and projects for both groundand space-based research. It recommended a single large initiative for s ...
The Life Cycle of Stars: Supernovae in Starbursts by Jason Kezwer
... We have observed the nearest ultraluminous infrared galaxy Arp 220 with a 13 month near-infrared observing program using the Canada France Hawaii Telescope to search for obscured supernovae in this extreme star forming environment. This monitoring program was aimed as a feasibility study to determin ...
... We have observed the nearest ultraluminous infrared galaxy Arp 220 with a 13 month near-infrared observing program using the Canada France Hawaii Telescope to search for obscured supernovae in this extreme star forming environment. This monitoring program was aimed as a feasibility study to determin ...
PDF - STRW Local - Universiteit Leiden
... the development of key-technologies that will enable future astronomical discoveries. Close collaborations with Dutch partners are crucial, such as the NOVA optical group at ASTRON, TNO Delft, the Netherlands Institute for Space Research (SRON), and Dutch Space. Ultimately, most instruments are buil ...
... the development of key-technologies that will enable future astronomical discoveries. Close collaborations with Dutch partners are crucial, such as the NOVA optical group at ASTRON, TNO Delft, the Netherlands Institute for Space Research (SRON), and Dutch Space. Ultimately, most instruments are buil ...
JRASC, June 2014 Issue (PDF, low resolution)
... of a historical, biographical, or educational nature of general interest to the astronomical community. All contributions are welcome, but the editors reserve the right to edit material prior to publication. Research papers are reviewed prior to publication, and professional astronomers with institu ...
... of a historical, biographical, or educational nature of general interest to the astronomical community. All contributions are welcome, but the editors reserve the right to edit material prior to publication. Research papers are reviewed prior to publication, and professional astronomers with institu ...
A Starscape in Red and Blue - Royal Astronomical Society of Canada
... of a historical, biographical, or educational nature of general interest to the astronomical community. All contributions are welcome, but the editors reserve the right to edit material prior to publication. Research papers are reviewed prior to publication, and professional astronomers with institu ...
... of a historical, biographical, or educational nature of general interest to the astronomical community. All contributions are welcome, but the editors reserve the right to edit material prior to publication. Research papers are reviewed prior to publication, and professional astronomers with institu ...
Star Formation in the Milky Way and Nearby Galaxies Further
... been theoretically based (Shu, Adams & Lizano 1987; McKee & Ostriker 2007). We here take an observational perspective, with emphasis on the interface between local and galactic scales. We focus on nearby galaxies and the MW, bringing in results from more distant galaxies only as they bear on the iss ...
... been theoretically based (Shu, Adams & Lizano 1987; McKee & Ostriker 2007). We here take an observational perspective, with emphasis on the interface between local and galactic scales. We focus on nearby galaxies and the MW, bringing in results from more distant galaxies only as they bear on the iss ...
Astronomy and Astrophysics (ASTRO) Iowa State University – 2013-2014 1
... An entirely web-based course covering topics in observing the sky and navigation by the stars for students with little or no previous experience. The course combines material on common naked-eye phenomena, such as daily and seasonal variations in the sky, with information on how these helped navigat ...
... An entirely web-based course covering topics in observing the sky and navigation by the stars for students with little or no previous experience. The course combines material on common naked-eye phenomena, such as daily and seasonal variations in the sky, with information on how these helped navigat ...
GALAXIES 626
... (ii) Globular clusters - dense compact clusters distributed in the Galactic halo. Hubble image of the globular cluster M80. In the Milky Way, globular clusters are made up of old stars only. ...
... (ii) Globular clusters - dense compact clusters distributed in the Galactic halo. Hubble image of the globular cluster M80. In the Milky Way, globular clusters are made up of old stars only. ...
Document
... – Billion solar-mass BH at the end of reionization – Strong star-formation associated with BH growth – Has M-sigma relation established at high-z? ...
... – Billion solar-mass BH at the end of reionization – Strong star-formation associated with BH growth – Has M-sigma relation established at high-z? ...
The Milky Way disk
... dynamical evolution, being the ultimate goal to understand how our galaxy formed and how it was assembled. From our location, at about 8.5 kpc from the Galactic Center, we can obtain precise information -both from ground and with dedicated satellites- for many individual stars, star clusters, and mo ...
... dynamical evolution, being the ultimate goal to understand how our galaxy formed and how it was assembled. From our location, at about 8.5 kpc from the Galactic Center, we can obtain precise information -both from ground and with dedicated satellites- for many individual stars, star clusters, and mo ...
2011-GravLens
... makes very faint objects appear brighter, larger and therefore more easily studied. One of the most distant object in the universe was discovered by the gravitational lensing effect. Abell 2218, a cluster of galaxies about 2 billion light-years away, was used as lens to see a galaxy some 13 billion ...
... makes very faint objects appear brighter, larger and therefore more easily studied. One of the most distant object in the universe was discovered by the gravitational lensing effect. Abell 2218, a cluster of galaxies about 2 billion light-years away, was used as lens to see a galaxy some 13 billion ...
Digital Universe Guide - American Museum of Natural History
... support from NASA, incorporates data from dozens of organizations worldwide to create the most complete and accurate 3-D atlas of the Universe from the local solar neighborhood out to the edge of the observable Universe. In preparation for the reopening of the Hayden Planetarium in 2000, the America ...
... support from NASA, incorporates data from dozens of organizations worldwide to create the most complete and accurate 3-D atlas of the Universe from the local solar neighborhood out to the edge of the observable Universe. In preparation for the reopening of the Hayden Planetarium in 2000, the America ...
IRAM Annual Report 2014
... First results obtained on NGC 1333-IRAS2A show that the emission of numerous COMs originates from a region of ~60 AU around the protostar, that there is no evidence for a preferential elongation of the COMs along the jet, and hence that COM emission is not arising from shocked envelope material at t ...
... First results obtained on NGC 1333-IRAS2A show that the emission of numerous COMs originates from a region of ~60 AU around the protostar, that there is no evidence for a preferential elongation of the COMs along the jet, and hence that COM emission is not arising from shocked envelope material at t ...
Hidden57_rf
... spectacular images that have become the icons of modern astronomy. By expanding your vision beyond the visible into an array of “colours” that span the full spectrum of light, you will be able to gain a more complete picture of the Universe than has ever been possible before in human history. These ...
... spectacular images that have become the icons of modern astronomy. By expanding your vision beyond the visible into an array of “colours” that span the full spectrum of light, you will be able to gain a more complete picture of the Universe than has ever been possible before in human history. These ...
FIRST STELLAR ABUNDANCES IN THE DWARF IRREGULAR
... evolution of more distant galaxies to date (Matteucci & Tosi 1985). So far, only a very limited number of elements can be examined and quantified when using this approach. The chemical evolution of a galaxy depends on the contributions of all its constituents, e.g., SNe type Ia and II, high mass sta ...
... evolution of more distant galaxies to date (Matteucci & Tosi 1985). So far, only a very limited number of elements can be examined and quantified when using this approach. The chemical evolution of a galaxy depends on the contributions of all its constituents, e.g., SNe type Ia and II, high mass sta ...
Studies of molecular clouds at the Galactic centre Roland Karlsson DECLINATION (B1950)
... winding of the spiral arms. However, intermediate classes also occur. A socalled grand design spiral galaxy is one where the spiral arms are well-defined. It is generally assumed that a central supermassive black hole (SMBH) resides at the dynamical centre of most spiral galaxies. Galaxies are obser ...
... winding of the spiral arms. However, intermediate classes also occur. A socalled grand design spiral galaxy is one where the spiral arms are well-defined. It is generally assumed that a central supermassive black hole (SMBH) resides at the dynamical centre of most spiral galaxies. Galaxies are obser ...
ALMA - ESO
... Herschel and ALMA Science: The Cool Universe Herschel is best suited for surveys, ALMA a followup instrument ALMA has a small Field Of View (FOV), but high angular resolution and sensitivity Higher angular resolution to image the sources measured by Herschel Follow up to sources discovered with PAC ...
... Herschel and ALMA Science: The Cool Universe Herschel is best suited for surveys, ALMA a followup instrument ALMA has a small Field Of View (FOV), but high angular resolution and sensitivity Higher angular resolution to image the sources measured by Herschel Follow up to sources discovered with PAC ...
IAC_L2_thindisk
... Diversion to radial migration (Sellwood & Binney 2002) Stars in disk galaxies can migrate in radius under the torque of a passing transient spiral wave. Stars moving at similar angular velocity to the spiral are flipped from one near-circular orbit to another: inwards or outwards. The spiral wave m ...
... Diversion to radial migration (Sellwood & Binney 2002) Stars in disk galaxies can migrate in radius under the torque of a passing transient spiral wave. Stars moving at similar angular velocity to the spiral are flipped from one near-circular orbit to another: inwards or outwards. The spiral wave m ...
Annual Report 2011 - Max Planck Institute for Astrophysics
... geometry of the MPA can easily confuse first-time visitors, its open and centrally focused plan is very effective at encouraging interaction between scientists (for example at the now traditional morning “scientific coffee”) and makes for a pleasant and stimulating research environment (see Fig. 1.1 ...
... geometry of the MPA can easily confuse first-time visitors, its open and centrally focused plan is very effective at encouraging interaction between scientists (for example at the now traditional morning “scientific coffee”) and makes for a pleasant and stimulating research environment (see Fig. 1.1 ...
The Final Version of the White Paper is available.
... The characterization of exoplanets is one of the outstanding key science cases for HIRES. The focus will be on characterizing exo-planet atmospheres over a wide range of masses, from Neptune-like down to Earth-like including those in the habitable zones, in terms of chemical composition, stratificat ...
... The characterization of exoplanets is one of the outstanding key science cases for HIRES. The focus will be on characterizing exo-planet atmospheres over a wide range of masses, from Neptune-like down to Earth-like including those in the habitable zones, in terms of chemical composition, stratificat ...
Abstract The Star Formation History of Low Surface Brightness Galaxies
... The star formation histories of low surface brightness galaxies are interesting but poorly constrained. These objects tend to be rather blue, contradicting the initial impression that they may simply be faded remnants of higher surface brightness galaxies whose star formation has finished. Other sce ...
... The star formation histories of low surface brightness galaxies are interesting but poorly constrained. These objects tend to be rather blue, contradicting the initial impression that they may simply be faded remnants of higher surface brightness galaxies whose star formation has finished. Other sce ...
Is there a Supermassive Black Hole at the Center of the Milky Way?
... density is 4 × 109 M⊙ pc−3 . Were one to place 4 × 107 stars inside a radius of 0.13 parsecs, the system would be dynamically unstable with less massive stars being expelled (“evaporated”) and more massive stars sinking to the center, colliding and possibly forming a black hole. The timescale for th ...
... density is 4 × 109 M⊙ pc−3 . Were one to place 4 × 107 stars inside a radius of 0.13 parsecs, the system would be dynamically unstable with less massive stars being expelled (“evaporated”) and more massive stars sinking to the center, colliding and possibly forming a black hole. The timescale for th ...
Galaxy Zoo
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.