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Hypervelocity Stars
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1 2 3 4
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Stars/galaxy News
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33
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26265
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Astronomers last year spotted three stars escaping the Milky Way galaxy. On Thursday, researchers announced the discovery of yet two more outbound stars.
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Hercules Dwarf Galaxy
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Stars/galaxy News
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4
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4462
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An international team of astronomers using the Large Binocular Telescope (LBT) in Arizona has discovered that the Hercules Dwarf Galaxy is shaped like a cigar. That makes it an oddball among millions of its peers. The Hercules Dwarf is a companion galaxy to our own Milky Way, but has only one ten-mil...
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Galaxy 3C442A
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Cosmology News
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0
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2456
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3C442A: Galaxy Collision Causes Role Reversal Astronomers think that there are enormous black holes at the centres of most, if not all, galaxies. These black holes, which can be millions or even billions of times more massive than the Sun, can greatly affect the galaxy and the environments around t...
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Compact Ellipticals
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Cosmology News
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0
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2454
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Title: Discovery of a new M32-like "Compact Elliptical" galaxy in the halo of the Abell 496 cD galaxy Authors: Igor Chilingarian, Veronique Cayatte, Laurent Chemin, Florence Durret, Tatiana Ferraz Lagana, Christophe Adami, Eric Slezak Aims: ''Compact ellipticals'&...
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Galaxy Disks
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Cosmology News
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0
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2306
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Title: Three Types of Galaxy Disks Authors: M.Pohlen (1), P. Erwin (2), I. Trujillo (3), J.E. Beckman (3) (Kapteyn Astronomical Institute, Groningen, NL (1), Max-Planck-Institut fuer extraterrestrische Physik, Garching, D (2), Instituto de Astrofisica de Canarias, La Laguna, E (3)) We prese...
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Polar-ring galaxy
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Cosmology News
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1
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2627
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Title: HUDF 1619 - a candidate polar-ring galaxy in the Hubble Ultra Deep Field Authors: V.P. Reshetnikov, R.-J. Dettmar A good candidate for a polar-ring galaxy has been detected in the Hubble Ultra Deep Field (HUDF). The galaxy HUDF 1619 (V~25 mag, z~1) is the most distant object of this type know...
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Local Group Galaxy IC 10
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Cosmology News
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7
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8483
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Title: The Proper Motion of the Local Group Galaxy IC 10
Authors: A. Brunthaler (1), M.J. Reid (2), H. Falcke (3,4), C. Henkel (1), K.M. Menten (1) ((1) Max-Planck-Institut fuer Radioastronomie, (2) Harvard-Smithsonian Centre for Astrophysics, (3) ASTRON, (4) Universiteit N...
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Malin 1 galaxy
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Cosmology News
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3
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6727
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Malin 1, the prototypical giant low surface brightness galaxy, harbours a normal disk of stars, says an astronomer in California. A Hubble image reveals a barred spiral galaxy at Malin 1's centre. As a result, Malin 1 may no longer be classified as a low surface brightness galaxy. Discovered i...
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Dwarf Irregular Galaxy DDO 53
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Cosmology News
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0
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2371
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Title: Diffuse Ionised Gas in the Dwarf Irregular Galaxy DDO 53 Authors: A.M. Hidalgo-Gamez (ESFM-Ipn) The spectral characteristics throughout the dwarf irregular galaxy DDO 53 are studied. The results are very similar to those for other irregular galaxies: high excitation and low values of th...
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Galaxy DDO 68
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Cosmology News
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3
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4654
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Title: Discovery of a massive variable star with Z=Zo/36 in the galaxy DDO 68 Authors: S. A. Pustilnik (1), A. L. Tepliakova (1), A. Y. Kniazev (2 and 1), A. N. Burenkov (1) ((1) Special Astrophysical Observatory RAS, Russia, (2) SAAO, South Africa) The Local Volume dwarf galaxy DDO 68, from the spect...
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Fornax Dwarf Spheroidal Galaxy
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Cosmology News
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4
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3593
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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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Draco Dwarf Spheroidal Galaxy
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Cosmology News
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2
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2953
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Title: The Variable Stars of the Draco Dwarf Spheroidal Galaxy - Revisited Authors: K. Kinemuchi, H.C. Harris, Horace A. Smith, N.A. Silbermann, L.A. Snyder, A. P. LaCluyze, C.L. Clark We present a CCD survey of variable stars in the Draco dwarf spheroidal galaxy. This survey, which has the larges...
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Phoenix Galaxy
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Cosmology News
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1
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4983
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Title: Suzaku observation of the Phoenix Galaxy Authors: G. Matt, S. Bianchi, H. Awaki, A. Comastri, M. Guainazzi, K. Iwasawa, E. Jimenez-Bailon, F. Nicastro In recent years, several Seyfert 2 galaxies have been discovered that change state when observed in X-rays a few years apart, switching fr...
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Compact HII galaxy UM 408
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Cosmology News
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0
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1930
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Title: On the compact HII galaxy UM 408 as seen by GMOS-IFU: Physical conditions Authors: Patricio Lagos (1,2), Eduardo Telles (1,3), Casiana Munoz-Tunon (2), Eleazar R. Carrasco (4), Francois Cuisinier (5), Guillermo Tenorio-Tagle (6) ((1)Observatorio Nacional, Brazil, (2)Instituto de As...
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B2 0722+30
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Cosmology News
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0
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2176
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Title: The disc-dominated host galaxy of FR-I radio source B2 0722+30 Authors: B. H. C. Emonts (1), C. N. Tadhunter (2), R. Morganti (3,4), T. A. Oosterloo (3,4), J. Holt (5), E. Brogt (6), G. van Moorsel (7) ((1) CSIRO-ATNF, (2) Univ. of Sheffield, (3) ASTRON, (4) Kapteyn Astron. Inst., (5) Leiden Ob...
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IC 3328
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Cosmology News
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0
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2488
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Title: On the nature of IC 3328, an early-type dwarf galaxy with weak spiral structure Authors: Thorsten Lisker, Burkhard Fuchs (ARI/ZAH, University of Heidelberg) (Version v2) Various early-type dwarf galaxies with disk features were identified in the Virgo cluster, including objects that d...
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Seyfert 1 Galaxy 1H0707-495
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Cosmology News
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4
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8051
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Using new data from ESA's XMM-Newton spaceborne observatory, astronomers have probed closer than ever to a supermassive black hole lying deep at the core of a distant active galaxy. The galaxy - known as 1H0707-495 - was observed during four 48-hr-long orbits of XMM-Newton around Earth, starting...
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UGC 7321
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Cosmology News
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1
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4209
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Title: Dark matter dominance at all radii in the superthin galaxy UGC 7321 Authors: Arunima Banerjee (IISc, India), Lynn D. Matthews (CFA-Harvard, USA), Chanda J. Jog (IISc, India) We model the shape and density profile of the dark matter halo of the low surface brightness, superthin galaxy UGC 73...
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Radio Galaxy 3C 33
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Cosmology News
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1
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4924
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Title: Suzaku Observations of the Radio Galaxy 3C 33 Authors: Daniel A. Evans (1), James N. Reeves (2), Martin J. Hardcastle (3), Ralph P. Kraft (4), Julia C. Lee (4), Shanil N. Virani (5) ((1) MIT Kavli Institute for Astrophysics and Space Research, (2) Keele University, (3) University of Hertford...
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Multiply Imaged Galaxy
(Preview)
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Cosmology News
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1
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3798
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Title: HST Discovery of a z = 3.9 Multiply Imaged Galaxy Behind the Complex Cluster Lens WARPS J1415.1+36 at z = 1.026 Authors: X. Huang, T. Morokuma, H. K. Fakhouri, G. Aldering, R. Amanullah, K. Barbary, M. Brodwin, N. V. Connolly, K. S. Dawson, M. Doi, L. Faccioli, V. Fadeyev, A. S. Fruchter, G. Gold...
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UDFy-38135539
(Preview)
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Galaxies
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3
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2447
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A European team of astronomers using ESO's Very Large Telescope (VLT) has measured the distance to the most remote galaxy so far. By carefully analysing the very faint glow of the galaxy they have found that they are seeing it when the Universe was only about 600 million years old (a redshift of 8.6). T...
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LAEJ095950.99+021219.1
(Preview)
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Galaxies
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2
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2253
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ASU astronomers discover faintest distant galaxy Newfound galaxy secures spot among top 10 most distant known objects in space Astronomers at Arizona State University have found an exceptionally distant galaxy, ranked among the top 10 most distant objects currently known in space. Light from t...
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