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- Goddard Space Flight CenterUS454 papers
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47 papers · 1 filter
Measuring the Accreting Stellar and Intermediate Mass Black Hole Populations in the Galaxy and Local Group
Jonathan Grindlay, Didier Barret, Tomaso Belloni +23
The population of stellar black holes (SBHs) in the Galaxy and galaxies generally is poorly known in both number and distribution. SBHs are the fossil record of the massive stars i…
An X-ray View of Star Formation in the Central 3 kpc of NGC 2403
Mihoko Yukita, Douglas A. Swartz, Allyn F. Tennant +1
Archival Chandra observations are used to study the X-ray emission associated with star formation in the central region of the nearby SAB(s)cd galaxy NGC 2403. The distribution of…
Identification and properties of the photospheric emission in GRB090902B
F. Ryde, M. Axelsson, B. B. Zhang +19
The Fermi Gamma-ray Space Telescope observed the bright and long GRB090902B, lying at a redshift of z = 1.822. Together the Large Area Telescope (LAT) and the Gamma-ray Burst Monit…
Measurements of Secondary Cosmic Microwave Background Anisotropies with the South Pole Telescope
M. Lueker, C. L. Reichardt, K. K. Schaffer +40
We report cosmic microwave background (CMB) power spectrum measurements from the first 100 sq. deg. field observed by the South Pole Telescope (SPT) at 150 and 220 GHz. On angular…
All-Sky Earth Occultation Observations with the Fermi Gamma Ray Burst Monitor
Colleen A. Wilson-Hodge, E. Beklen, P. N Bhat +10
Using the Gamma Ray Burst Monitor (GBM) on-board Fermi, we are monitoring the hard X-ray/soft gamma ray sky using the Earth occultation technique. Each time a source in our catalog…
Magnetar Twists: Fermi/Gamma ray Burst Monitor (GBM) detection of SGR J1550-5418
Y. Kaneko, E. Gogus, C. Kouveliotou +12
SGR J1550-5418 (previously known as AXP 1E 1547.0-5408 or PSR J1550-5418) went into three active bursting episodes in 2008 October and in 2009 January and March, emitting hundreds…