Zobrazeno 1 - 10
of 14
pro vyhledávání: '"E. M. Ratti"'
Autor:
Jason W. T. Hessels, Manuel A. P. Torres, E. M. Ratti, M. V. van der Sluys, Gijs Nelemans, James Miller-Jones, T.F.J. van Grunsven, Peter G. Jonker, H. Van Winckel
Publikováno v:
Monthly Notices of the Royal Astronomical Society. Letters, 431(1), L10-L14. Oxford University Press
Monthly Notices of the Royal Astronomical Society: Letters, 431, 1, pp. L10-L14
Monthly Notices of the Royal Astronomical Society: Letters, 431, L10-L14
Monthly Notices of the Royal Astronomical Society: Letters, 431, 1, pp. L10-L14
Monthly Notices of the Royal Astronomical Society: Letters, 431, L10-L14
We present phase-resolved spectroscopy and photometry of the optical counterpart to the X-ray binary IGR J19308+0530. Ellipsoidal modulations in the light curve show that the F-type companion star in the system is Roche lobe filling. The optical spec
Autor:
E. M. Ratti, Thomas J. Maccarone, Peter G. Jonker, Paul J. Groot, D. Steeghs, L. Gossen, V. A. Villar, Christopher T. Britt, Robert I. Hynes, Christian Knigge, Manuel A. P. Torres, T. van Grunsven, A. C. Collazzi, Sandra Greiss, V. J. Mikles
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 428, 4, pp. 3543-3550
Monthly Notices of the Royal Astronomical Society, 428, 3543-3550
Monthly Notices of the Royal Astronomical Society, 428, 3543-3550
We present phase-resolved spectroscopy and photometry of a source discovered with the Chandra Galactic Bulge Survey (GBS), CXOGBSJ174444.7-260330 (aka CX93 and CX153 in the previously published GBS list). We find two possible values for the orbital p
Autor:
Manuel A. P. Torres, Peter G. Jonker, D. Steeghs, Sera Markoff, Rudy Wijnands, Feryal Özel, Rob Fender, P. Kaaret, John A. Tomsick, Elena Gallo, E. M. Ratti, James Miller-Jones, Jeroen Homan
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 423:2656-2667
We present optical, X-ray and radio observations of the black hole transient (BHT) XTE J1752-223 towards and in quiescence. Optical photometry shows that the quiescent magnitude of XTE J1752-223 is fainter than 24.4 magnitudes in the i'-band. A compa
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 423:694-701
GRS 1915+105 is a widely studied black hole binary, well known because of its extremely fast and complex variability. Flaring periods of high variability alternate with "stable" phases (the plateaux) when the flux is low, the spectra are hard and the
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 420:75-83
We present phase-resolved optical spectroscopy of the counterpart to the neutron star low mass X-ray binary EXO 0748-676, almost one year after it turned into quiescence. The spectra display prominent Hbeta and Hgamma and weak Fe II lines in emission
Autor:
Catherine Brocksopp, Peter G. Jonker, Nidia Morrell, Jun Yang, James Miller-Jones, E. M. Ratti, Manuel A. P. Torres
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 415:306-312
Using high-precision astrometric optical observations from the Walter Baade Magellan Telescope in conjunction with high-resolution very long baseline interferometric (VLBI) radio imaging with the Very Long Baseline Array (VLBA), we have located the c
Autor:
E. M. Ratti, Manuel A. P. Torres, C. G. Bassa, James Miller-Jones, L. Kuiper, Peter G. Jonker
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 408:1866-1878
We investigate a sample of 11 Galactic X-ray sources recently discovered with INTEGRAL or RXTE with the goal of identifying their optical and/or near-infrared (NIR) counterpart. For this purpose, new Chandra positions of nine objects are presented to
Autor:
Manuel A. P. Torres, E. M. Ratti, M. Heida, A. C. Fabian, Peter G. Jonker, Giovanni Miniutti, Timothy P.L. Roberts
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 433, 681-687
Monthly notices of the Royal Astronomical Society, 2013, Vol.433(1), pp.681-687 [Peer Reviewed Journal]
Monthly Notices of the Royal Astronomical Society, 433, 1, pp. 681-687
Monthly notices of the Royal Astronomical Society, 2013, Vol.433(1), pp.681-687 [Peer Reviewed Journal]
Monthly Notices of the Royal Astronomical Society, 433, 1, pp. 681-687
We obtained VLT/FORS2 spectra of the optical counterparts of four high-luminosity (L_X >= 10^40 erg/s) ULX candidates from the catalog of Walton (2011). We first determined accurate positions for the X-ray sources from archival Chandra observations a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b61dfbd399e585c486e3e2684d88a6f
http://hdl.handle.net/2066/117322
http://hdl.handle.net/2066/117322
Autor:
R. Turolla, Silvia Zane, A. Possenti, Josep M. Girart, Ersin Gogus, Andrea Tiengo, Rosalba Perna, Aina Palau, Alessandro Papitto, D. Gotz, D. Salvetti, José A. Pons, E. M. Ratti, Chryssa Kouveliotou, Roberto Mignani, Luigi Stella, G. L. Israel, M. Burgay, A. Caliandro, Daniele Viganò, Nanda Rea, Giacomo Terreran, Paolo Esposito
Publikováno v:
RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
Universidad de Alicante (UA)
We report on the long term X-ray monitoring of the outburst decay of the low magnetic field magnetar SGR 0418+5729, using all the available X-ray data obtained with RXTE, SWIFT, Chandra, and XMM-Newton observations, from the discovery of the source i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f8ef13de64609913e4ef703f4ad4171
Autor:
M. A. P. Torres, M. Heida, A. C. Fabian, P.G. Jonker, Dom Walton, G. Miniutti, Timothy P.L. Roberts, E. M. Ratti, James Miller-Jones
Publikováno v:
The Astrophysical Journal, 758, 1
Astrophysical journal, 2012, Vol.758(1), pp.28 [Peer Reviewed Journal]
The Astrophysical Journal, 758
Astrophysical journal, 2012, Vol.758(1), pp.28 [Peer Reviewed Journal]
The Astrophysical Journal, 758
We report on Chandra observations of the bright ultra-luminous X-ray (ULX) source in NGC3921. Previous XMM observations reported in the literature show the presence of a bright ULX at a 0.5-10 keV luminosity of 2x10^40 erg/s. Our Chandra observation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d13c59284bda61285d1b90e5b11bf3c
https://hdl.handle.net/2066/103834
https://hdl.handle.net/2066/103834