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Scuba 2
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Submillimetre astronomy, (at wavelengths of 200µm to 1mm), is most sensitive to very cold gas and dust. For example, a source with a temperature of 10 K (-263 C) emits most of its energy in a broad spectral region centred around 300 microns. Such very cold material is associated with objects in format...
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Blobrana
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10
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G1425+5235 and G1355+5439
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Nearby dwarf galaxy and possible protogalaxy discovered Optical and radio telescopes lead to finds, reconstruction of intergalactic traffic jam Peering deep into the dim edges of a distorted pinwheel galaxy in the constellation Ursa Major (the Great Bear), astronomers at Case Western Reserve...
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NVSS J141828+354250
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Title: A new flaring high energy gamma-ray source Authors: E. Bernieri, R. Campana, E. Massaro, A. Paggi, A. Tramacere We report the detection of a new gamma-ray source in the Fermi-LAT sky using a source detection tool based on the Minimal Spanning Tree algorithm. The source, not reported in previ...
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Blobrana
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Fornax Dwarf Spheroidal Galaxy
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Title: AGB Stars in the Fornax Dwarf Spheroidal Galaxy Authors: Patricia A. Whitelock, John W. Menzies, Michael W. Feast, Noriyuki Matsunaga, Toshihiko Tanabe, Yoshifusa Ita We report on a multi-epoch study of the Fornax dwarf spheroidal galaxy, made with the Infrared Survey Facility, over an a...
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Blue Compact Dwarf Galaxies
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Title: Blue Compact Dwarf Galaxies with Spitzer: The Infrared/Radio Properties Authors: Yanling Wu, V. Charmandaris, J.R. Houck, J.Bernard-Salas, V.Lebouteiller, B.R. Brandl, D. Farrah We study the correlation between the radio, mid-infrared and far-infrared properties for a sample of 28...
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Galaxy clusters
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Title: H.E.S.S. observations of galaxy clusters Authors: W. Domainko, W. Benbow, J. A. Hinton, O. Martineau-Huynh, M. de Naurois, D. Nedbal, G. Pedaletti, G. Rowell, for the H.E.S.S. Collaboration Clusters of galaxies, the largest gravitationally bound objects in the universe, are expected t...
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14
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PKS 0745-191
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The joint Japan-U.S. Suzaku mission is providing new insight into how assemblages of thousands of galaxies pull themselves together. For the first time, Suzaku has detected X-ray-emitting gas at a cluster's outskirts, where a billion-year plunge to the center begins. "These Suzaku obser...
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CXO J1415.2+3610
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Title: Chandra and optical/IR observations of CXOJ1415.2+3610, a massive, newly discovered galaxy cluster at z~1.5 Authors: P. Tozzi, J.S. Santos, M. Nonino, P. Rosati, S. Borgani, B. Sartoris, B. Altieri, M. Sanchez-Portal We report the discovery of CXO J1415.2+3610, a distant (z~1.5) galax...
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MG J0414+0534
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A research group led by graduate student Violette Impellizzeri from the Max Planck Institute for Radio Astronomy has used the 100 m Effelsberg radio telescope to detect water at the greatest distance from Earth so far. The water vapour was discovered in the quasar MG J0414+0534 at redshift 2.64, wh...
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8
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MOO J2342.0+1301
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Little Telescope Spies Gigantic Galaxy Clusters The rarest and largest of galaxy groupings, called galaxy clusters, can be the hardest to find. That's where NASA's Wide-field Infrared Survey Explorer (WISE) can help. The mission's all-sky infrared maps have revealed one distant galaxy cluste...
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4U 0614+091
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One of the most mysterious aspects of black holes is their ability to shoot small, steady jets of matter into space near the speed of light. Until the sensitive infrared eyes of NASA's Spitzer Space Telescope recently spotted one of these jets around a nearby neutron star, or super-dense dead star, b...
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Metal-poor gas
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Title: Extremely metal-poor gas at a redshift of 7 Authors: Robert A. Simcoe, Peter W. Sullivan, Kathy L. Cooksey, Melodie M. Kao, Michael S. Matejek, Adam J. Burgasser In typical astrophysical environments, the abundance of heavy elements ranges from 0.001 to 2 times the solar concentration. Lo...
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Starburst Galaxies
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A telescope designed by a University of Miami physicist and an international team of collaborators has produced the clearest images of starburst galaxies, revealing a new picture of the universe in its early stages People have always wondered where we, our Earth, our galaxy, come from. A group of s...
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A3532 and A3530
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Title: A cluster pair : A3532 and A3530 Authors: K. Lakhchaura, K. P. Singh, D. J. Saikia, R. W. Hunstead We present a detailed study of the environments of a close pair of clusters of galaxies, A3532 and A3530. The Chandra X-ray image of A3532 reveals presence of substructures on scales of 20 arcsecon...
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Abell 520
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Dark Matter Core Defies Explanation in Hubble Image Astronomers observed what appeared to be a clump of dark matter left behind during a bizarre wreck between massive clusters of galaxies. The dark matter collected into a "dark core" containing far fewer galaxies than would be expecte...
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