|
|
The Bootes Void
(Preview)
Stare into the night sky and you can't help being amazed by the sheer scale of the universe. Look for Sirius, the brightest star in the sky. That's 8.6 light years away. Polaris, the North Star, sits 431 light years from us, and the faintly visible Andromeda galaxy lies 2.6 million light years from Eart...
|
Blobrana
|
0
|
|
|
|
|
|
NGC6907
(Preview)
Two objects discovered in Capricornus during the 1800s are a pair of colliding galaxies, say astronomers in California and Spain. Furthermore, the collision probably spawned much of the larger galaxy's splendour. NGC 6907 is a beau...
|
Blobrana
|
0
|
|
|
|
|
|
Quasar 4C74.26
(Preview)
Title: The luminous X-ray hotspot in 4C 74.26: synchrotron or inverse-Compton emission? Authors: M.C. Erlund, A.C. Fabian, Katherine M. Blundell, C. Moss, D.R. Ballantyne We report the discovery of an X-ray counterpart to the southern radio hotspot of the largest-known radio quasar 4C 74.26 (w...
|
Blobrana
|
0
|
|
|
|
|
|
XMMU J174716.1-281048
(Preview)
Title: XMMU J174716.1-281048: a "quasi-persistent" very faint X-ray transient? Authors: M. Del Santo, L. Sidoli, S. Mereghetti, A. Bazzano, A. Tarana, P. Ubertini The X-ray transient XMMU J174716.1-281048 was serendipitously discovered with XMM-Newton in 2003. It lies about 0.9...
|
Blobrana
|
0
|
|
|
|
|
|
The Millennium Galaxy Catalogue
(Preview)
Title: The Millennium Galaxy Catalogue: Galaxy Bimodality
Authors: Simon P. Driver (Univ. St Andrews), Jochen Liske (ESO), Alister W. Graham (Swinburne)
Galaxy bimodality is caused by the bulge-disc nature of galaxies as opposed to two distinct galaxy classes. This is e...
|
Blobrana
|
1
|
|
|
|
|
|
Galaxy 3C442A
(Preview)
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...
|
Blobrana
|
0
|
|
|
|
|
|
Compact Ellipticals
(Preview)
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'&...
|
Blobrana
|
0
|
|
|
|
|
|
RXJ1119.7+2126
(Preview)
Title: The isolated fossil group RXJ1119.7+2126 Authors: C. Adami, D. Russeil, F. Durret Fossil groups are galaxy structures that probably underwent a nearly complete fusion of all intermediate magnitude galaxies into a single large central dominant galaxy. However, the formation and evolut...
|
Blobrana
|
0
|
|
|
|
|
|
GRB 060729
(Preview)
Gamma-Ray Burst Challenges Theory In a series of landmark observations gathered over a period of four months, NASA's Swift satellite has challenged some of astronomers' fundamental ideas about gamma-ray bursts (GRBs), which are among the most extreme events in our universe. GRBs are t...
|
Blobrana
|
0
|
|
|
|
|
|
NGC 5011C
(Preview)
Title: NGC 5011C: an overlooked dwarf galaxy in the Centaurus A group
Authors: Ivo Saviane (1), Helmut Jerjen (2) ((1) ESO, (2) Research School of Astronomy and Astrophysics, The Australian National University, Mt Stromlo Observatory)
We report the discovery of a previously unno...
|
Blobrana
|
1
|
|
|
|
|
|
L1641N
(Preview)
Title: Herbig-Haro flows in L1641N Authors: M. Gaalfalk, G. Olofsson We have used the 2.56m Nordic Optical Telescope (NOT) to observe two deep fields in L1641N, selected on the basis of previous shock studies, using the 2.12 micron transition of H2 (and a Ks filter to sample the continuum) for a tota...
|
Blobrana
|
0
|
|
|
|
|
|
D100
(Preview)
Researchers from the National Astronomical Observatory of Japan (NAOJ) and the University of Tokyo used Subaru's Suprime-Cam camera to discover an unusual streak of ionised hydrogen gas associated with a galaxy 300 million light-years from Earth. The filament of gas is only 6 thousand ligh...
|
Blobrana
|
0
|
|
|
|
|
|
Massive Supernova Progenitors
(Preview)
Title: Constraints on the Massive Supernova Progenitors Authors: Bojan Arbutina Generally accepted scheme distinguishes two main classes of supernovae (SNe): Ia resulting from the old stellar population (deflagration of a white dwarf in close binary systems), and SNe of type II and Ib/c whose...
|
Blobrana
|
0
|
|
|
|
|
|
I Zwicky 1
(Preview)
Title: A longer XMM-Newton look at I Zwicky 1: Variability of the X-ray continuum, absorption, and iron Kalpha line Authors: L. C. Gallo (1,2), W. N. Brandt (3), E. Costantini (4,5), A. C. Fabian (6), K. Iwasawa (1), I. E. Papadakis (7) ((1) MPE; (2) Univ. St Andrews; (3) PSU; (4) SRON; (5) Utrecht Univ...
|
Blobrana
|
0
|
|
|
|
|
|
ESO 325-G004
(Preview)
The giant elliptical ESO 325-G004 looms large at the cluster's centre. The galaxy is as massive as 100 billion of our suns. Hubble resolves thousands of globular star clusters orbiting ESO 325-G004. Globular clusters are compact groups of hundreds of thousands of stars that are gravitationa...
|
Blobrana
|
0
|
|
|
