搜索结果: 1-10 共查到“星系与宇宙学 Observation”相关记录10条 . 查询时间(0.167 秒)
Antarctic detector confirms observation of cosmic neutrinos
Antarctic detector confirms cosmic neutrinos
2015/9/9
A group of researchers using a massive, National Science Foundation (NSF)-funded instrument buried deep in the ice at the geographic South Pole have announced a new observation of high-energy neutrino...
A Chandra Observation of GRO J1744–28: The Bursting Pulsar in Quiescence
GRO J1744–28 neutron
2014/12/26
We present a Chandra/Advanced CCD Imaging Spectrometer I-array observation of GRO J1744-28. We detected a source at a position of R.A. = 17h44m33.s09, decl. = -28°44'270 (J2000.0; with a 1 σ error of ...
Chandra Observation of Supernova Remnant G54.1+0.3: A Close Cousin of the Crab Nebula
G54.1+0.3 jets and outfl ows
2014/12/26
We present a Chandra Advanced CCD Imaging Spectrometer observation of supernova remnant G54.1+0.3. This supernova remnant is resolved into several distinct X-ray-emitting components: a central bright ...
Chandra Observation of the Edge-on Galaxy NGC 3556 (M108): Violent Galactic Disk-Halo Interaction Revealed
NGC 3556 spiral
2014/12/26
We present a 60 ks Chandra ACIS-S observation of the isolated edge-on spiral galaxy NGC 3556, together with a multiwavelength analysis of various discrete X-ray sources and diffuse X-ray features. Amo...
We present an XMM–Newton observation of the massive edge-on Sb galaxy NGC 2613. We discover that this galaxy contains a deeply embedded active nucleus with a 0.3–10 keV luminosity of 3.3 × 1040 erg s&...
Chandra observation of the edge-on spiral NGC 5775: probing the hot galactic disc/halo connection
individual (NGC 5775) general
2014/12/23
We study the edge-on galaxy NGC 5775, utilizing a 58.2 ks Chandra ACIS-S observation together with complementary Hubble Space Telescope (HST) ACS, Spitzer IRAC and other multi-wavelength data sets. Th...
Observation of H2O in a strongly lensed Herschel-ATLAS source at z=2.3
Galaxies: high-redshift – Galaxies: starburst – Galaxies: active – Infrared: galaxies – Submillimeter: galaxies – Radiolines: galaxies
2011/10/19
The Herschel survey, H-ATLAS, with its large areal coverage, has recently discovered a number of bright, strongly lensed high-z submillimeter galaxies. The strong magnification makes it possible to st...
Observation of the Cosmic Ray Moon shadowing effect with the ARGO-YBJ experiment
Extensive Air Showers, Cosmic Rays, Moon shadow, Geomagnetic fi eld, ARGO-YBJ
2011/10/10
Cosmic rays are hampered by the Moon and a deficit in its direction is expected (the so-called \emph{Moon shadow}). The Moon shadow is an important tool to determine the performance of an air shower a...
A Suzaku Observation of MCG-2-58-22: Constraining the Geometry of the Circumnuclear Material
Observation MCG-2-58-22 Constraining Geometry clear Material
2011/9/26
We have analyzed a Suzaku long-look of the active galactic nucleus MCG-2-58-22, a type 1.5 Seyfert with very little X-ray absorption in the line of sight and prominent features arising from reflection...
An XMM-Newton Observation of the Bright Seyfert 2 Galaxy NGC 6300
Bright Seyfert 2 Galaxy NGC 6300 XMM-Newton
2009/6/9
An XMM-Newton Observation of the Bright Seyfert 2 Galaxy NGC 6300。