E
Erik Kuulkers
Researcher at European Space Research and Technology Centre
Publications - 238
Citations - 8175
Erik Kuulkers is an academic researcher from European Space Research and Technology Centre. The author has contributed to research in topics: Neutron star & Light curve. The author has an hindex of 50, co-authored 238 publications receiving 7605 citations. Previous affiliations of Erik Kuulkers include European Space Agency & National Institute for Space Research.
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Journal ArticleDOI
INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational-wave Event GW170817
V. G. Savchenko,Carlo Ferrigno,Erik Kuulkers,Angela Bazzano,Enrico Bozzo,Søren Brandt,Jérôme Chenevez,Thierry J.-L. Courvoisier,Roland Diehl,A. Domingo,Lorraine Hanlon,Elisabeth Jourdain,A. von Kienlin,Ph. Laurent,F. Lebrun,Alexander A. Lutovinov,Antonio Martin-Carrillo,Sandro Mereghetti,Lorenzo Natalucci,James Rodi,J. P. Roques,R. A. Sunyaev,Pietro Ubertini +22 more
TL;DR: In this article, the authors reported the INTernational Gamma-ray Astrophysics Laboratory (INTEGRAL) detection of the short gamma-ray burst GRB 170817A (discovered by Fermi-GBM) with a signal-to-noise ratio of 4.6, and, for the first time, its association with the gravitational waves from binary neutron star (BNS) merging event GW170817 detected by the LIGO and Virgo observatories.
Journal ArticleDOI
A black hole in the superluminal source sax j1819.3-2525 (v4641 sgr)
Jerome A. Orosz,Erik Kuulkers,Michiel van der Klis,Jeffrey E. McClintock,Michael R. Garcia,Paul J. Callanan,Charles D. Bailyn,Raj K. Jain,Ronald A. Remillard +8 more
TL;DR: In this paper, a photometric period of Pphoto = 2.81730 ± 0.00001 days using a light curve measured from photographic plates was found for SAX J1819.3-2525 (V4641 Sgr).
Journal ArticleDOI
The optical light curves of Cygnus X-2 (V1341 Cyg) and the mass of its neutron star
Jerome A. Orosz,Erik Kuulkers +1 more
TL;DR: In this paper, an ellipsoidal model was used to fit the lower envelopes of the B and V light curves to derive inclination constraints for the Cygnus X-2 binary.
Journal ArticleDOI
Discovery of a Redshifted Iron K Line in the X-Ray Afterglow of GRB 000214
L. A. Antonelli,Luigi Piro,Mario Vietri,Enrico Costa,Paolo Soffitta,Marco Feroci,Lorenzo Amati,Filippo Frontera,Elena Pian,J. J. M. in 't Zand,John Heise,Erik Kuulkers,Luciano Nicastro,R. C. Butler,Luigi Stella,Gc Perola +15 more
TL;DR: In this article, the authors reported the detection of a strong iron emission line in the X-ray spectrum of the afterglow of GRB 000214 (Valentine's Day Burst) observed by BeppoSAX.
Journal ArticleDOI
When a standard candle flickers
Colleen A. Wilson-Hodge,Michael Cherry,Gary L. Case,W. H. Baumgartner,E. Beklen,E. Beklen,P. Narayana Bhat,Michael S. Briggs,Ascension Camero-Arranz,Vandiver Chaplin,Valerie Connaughton,Mark H. Finger,Neil Gehrels,Jochen Greiner,Keith Jahoda,Peter Jenke,R. Marc Kippen,Chryssa Kouveliotou,Hans A. Krimm,Hans A. Krimm,Erik Kuulkers,Niels Lund,Charles A. Meegan,Lorenzo Natalucci,W. S. Paciesas,Robert D. Preece,James Rodi,Nikolai Shaposhnikov,Nikolai Shaposhnikov,Gerald K. Skinner,Gerald K. Skinner,D. Swartz,Andreas von Kienlin,Roland Diehl,Xiao-Ling Zhang +34 more
TL;DR: In this article, the authors show that the Crab is known to be dynamic on small scales, so it is not too surprising that its total flux varies as well, and they take caution when using the Crab for in-orbit calibrations.