J
Joanne E. Hill
Researcher at Goddard Space Flight Center
Publications - 107
Citations - 11710
Joanne E. Hill is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Gamma-ray burst & X-ray telescope. The author has an hindex of 27, co-authored 106 publications receiving 10989 citations. Previous affiliations of Joanne E. Hill include Universities Space Research Association & Pennsylvania State University.
Papers
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Proceedings ArticleDOI
A negative ion time projection chamber x-ray polarimeter for transient sources
Zachary R. Prieskorn,J. Kevin Black,Joanne E. Hill,Joanne E. Hill,Michael J. Strube,Christian E. Urba,Keith Jahoda,Philip Kaaret +7 more
TL;DR: A gamma-ray burst polarimeter (GRBP) was developed at NASA Goddard Space Flight Center for measuring the Xray polarization of energetic transients in the 2 - 10 keV energy range as mentioned in this paper.
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Prompt and afterglow early X-ray phases in the comoving frame. Evidence for Universal properties?
G. Chincarini,A. Moretti,P. Romano,Stefano Covino,G. Tagliaferri,Sergio Campana,M. R. Goad,Shiho Kobayashi,Bing Zhang,Lorella Angelini,P. Banat,S. D. Barthelmy,A. P. Beardmore,P. T. Boyd,A. A. Breeveld,David N. Burrows,M. Capalbi,M. M. Chester,G. Cusumano,E. E. Fenimore,N. Gehrels,P. Giommi,Joanne E. Hill,D. Hinshaw,S. T. Holland,J. A. Kennea,H. A. Krimm,V. La Parola,V. Mangano,F. E. Marshall,K. O. Mason,J. A. Nousek,P. T. O'Brien,J. P. Osborne,M. Perri,P. Meszaros,P. W. A. Roming,T. Sakamoto,Patricia Schady,Martin Still,Alan A. Wells +40 more
TL;DR: In this article, the authors analyzed the Swift XRT light curves and spectra of seven gamma-ray bursts (GRBs) for which the redshift has been measured and found that the energy of the afterglow emitted in the (rest frame) time interval 20-200 s and 1300-12600 s after the trigger correlates with the mean energy of prompt emission, hinting at a close link between the two.
Proceedings ArticleDOI
Simulation of the flight experience of the ACIS CCDs on the Chandra X-ray Observatory
Joanne E. Hill,Kevin T. Lewis,R. Foster,Mark W. Bautz,S. K. Brown,Peter W. A. Roming,Ann Hornschemeier,David N. Burrows,Gordon P. Garmire +8 more
TL;DR: The energy resolution degradation of the ACIS CCDs on board the Chandra X-ray Observatory has been under investigation since the effect was first recognized two months after launch as mentioned in this paper.
Journal ArticleDOI
Swift and XMM observations of the dark GRB 050326
Alberto Moretti,A. De Luca,D. Malesani,Sergio Campana,Andrea Tiengo,A. Cucchiara,James Reeves,G. Chincarini,C. Pagani,P. Romano,G. Tagliaferri,P. Banat,M. Capalbi,M. Perri,G. Cusumano,V. Mangano,Teresa Mineo,V. La Parola,A. P. Beardmore,M. R. Goad,J. P. Osborne,Joanne E. Hill,Lorella Angelini,David N. Burrows,Shiho Kobayashi,Peter Mészáros,Bing Zhang,S. D. Barthelmy,L. M. Barbier,N. E. White,E. E. Fenimore,L. R. Cominsky,N. Gehrels +32 more
TL;DR: In this article, the afterglow light curve did not show any break nor flares between ~1 hr and ~6 d after the burst, and decayed with a slope 1.70.
Journal ArticleDOI
Modelling the spectral response of the Swift-XRT CCD camera: Experience learnt from in-flight calibration
Olivier Godet,Andrew P. Beardmore,A. F. Abbey,J. P. Osborne,G. Cusumano,C. Pagani,Milvia Capalbi,M. Perri,K. L. Page,David N. Burrows,Sergio Campana,Joanne E. Hill,J. A. Kennea,Alessia Moretti +13 more
TL;DR: In this paper, the XRT spectral response calibration was complicated by various energy offsets in photon counting (PC) and windowed timing (WT) modes related to the way the CCD is operated in orbit (variation in temperature during observations, contamination by optical light from the sunlit Earth and increase in charge transfer inefficiency).