A New Dynamical Model for the Black Hole Binary LMC X-1 (2008)
Orosz, Jerome A., Steeghs, Danny, McClintock, Jeffrey E., Torres, Manuel A. P., Bochkov, Ivan, Gou, Lijun, ...
We present a dynamical model of the high mass X-ray binary LMC X-1 based on high-resolution optical spectroscopy and extensive optical and near-infrared photometry. From our new optical data we find...
Orbital Dynamics Of A Possible Second Planet In HD 17156 (2008)
Short, Donald, Welsh, William F., Orosz, Jerome A., Windmiller, Gur
In this letter we report the possible existence of a second planet in the transiting extrasolar planet system HD 17156 and its interactive dynamics with the previously known planet. The analysis is...
Precise Measurement of the Spin Parameter of the Stellar-Mass Black Hole M33 X-7 (2008)
Liu, Jifeng, McClintock, Jeffery E., Narayan, Ramesh, Davis, Shane W., Orosz, Jerome A.
In prior work, {\it Chandra} and Gemini-North observations of the eclipsing X-ray binary M33 X-7 have yielded measurements of the mass of its black hole primary and the system's orbital inclination...
A 15.65 solar mass black hole in an eclipsing binary in the nearby spiral galaxy Messier 33 (2007)
Orosz, Jerome A., McClintock, Jeffrey E., Narayan, Ramesh, Bailyn, Charles D., Hartman, Joel D., Mracri, Lucas, ...
Stellar-mass black holes are discovered in X-ray emitting binary systems, where their mass can be determined from the dynamics of their companion stars. Models of stellar evolution have difficulty...
Orosz, Jerome A., McClintock, Jeffrey E., Narayan, Ramesh, Bailyn, Charles D., Hartman, Joel D., Macri, Lucas, ...
This Supplementary Information provides details about the spectral extraction (crowding issues and the removal of nebular lines), a discussion about the distance to M33, a model for the O-star wind...
McClintock, Jeffrey E., Remillard, Ronald A., Rupen, Michael P., Torres, M. A. P., Steeghs, D., Levine, Alan M., ...
We provide a comprehensive report on the X-ray and radio evolution of H1743-322 during its 2003 outburst. Our X-ray spectral and timing results (3-200 keV) are derived from 170 RXTE observations that...
A 15.65-solar-mass black hole in an eclipsing binary in the nearby spiral galaxy M 33 (2007)
Orosz, Jerome A., McClintock, Jeffrey E., Narayan, Ramesh, Bailyn, Charles D., Hartman, Joel D., Macri, Lucas, ...
Dynamical evidence for a black hole in the eclipsing X-ray binary M33 X-7 (2007)
Orosz, Jerome A., McClintock, Jeffrey E., Bailyn, Charles D., Remillard, Ronald A., Pietsch, Wolfgang, Narayan, Ramesh
NSVS01031772: A New 0.50+0.54 Msun Detached Eclipsing Binary (2006)
Lopez-Morales, Mercedes, Orosz, Jerome A., Shaw, J. Scott, Havelka, Lauren, Arevalo, Maria Jesus, McIntyre, Travis, ...
We report the discovery of a new detached eclipsing binary known as NSVS01031772 with component masses M_1= 0.5428 +/- 0.0027Msun, M_2= 0.4982 +/- 0.0025Msun, and radii R_1= 0.5260 +/- 0.0028Rsun,...
2MASS J05162881+2607387: A New Low-Mass Double-Lined Eclipsing Binary (2006)
Bayless, Amanda J., Orosz, Jerome A.
We show that the star known as 2MASS J05162881+2607387 (hereafter J0516) is a double-lined eclipsing binary with nearly identical low-mass components. The spectroscopic elements derived from 18...
System Parameters of the Transiting Extrasolar Planet HD 209458b (2005)
Wittenmyer, Robert A., Welsh, William F., Orosz, Jerome A., Schultz, A. B., Kinzel, W., Kochte, M., ...
We derive improved system parameters for the HD 209458 system using a model that simultaneously fits both photometric transit and radial velocity observations. The photometry consists of previous...
The X-ray Outburst of H1743-322: High-Frequency QPOs with a 3:2 Frequency Ratio (2004)
Remillard, Ronald A., McClintock, Jeffrey E., Orosz, Jerome A., Levine, Alan M.
We observed the 2003 X-ray outburst of H1743-322 in a series of 130 pointed observation with RXTE. We searched individual observations for high-frequency QPOs (HFQPOs) and found only weak or marginal...
Orbital Parameters for the Black Hole Binary XTE J1650-500 (2004)
Orosz, Jerome A., McClintock, Jeffrey E., Remillard, Ronald A., Corbel, Stephane
(Shortened) We present R-band photometry of the X-ray transient and candidate black hole binary XTE J1650-500 obtained between 2003 May and August with the 6.5m Clay Telescope. A timing analysis of...
Chandra Detections of Two Quiescent Black Hole X-Ray Transients (2003)
Tomsick, John A., Corbel, Stephane, Fender, Rob, Miller, Jon M., Orosz, Jerome A., Rupen, Michael P., ...
Using the Chandra X-ray Observatory, we have detected the black hole transients V4641 Sgr and XTE J1859+226 in their low luminosity, quiescent states. The 0.3-8 keV luminosities are...
Ultraviolet Spectra of CV Accretion Disks with Non-Steady T(r) Laws (2003)
Orosz, Jerome A., Wade, Richard A.
An extensive grid of synthetic mid- and far-ultraviolet spectra for accretion disks in cataclysmic variables has been presented by Wade and Hubeny (1998). In those models, the disk was assumed to be...
Multiwavelength Spectrum of the Black Hole XTE J1118+480 in Quiescence (2003)
McClintock, Jeffrey E., Narayan, Ramesh, Garcia, Michael R., Orosz, Jerome A., Remillard, Ronald A., Murray, Stephen S.
We present an X-ray/UV/optical spectrum of the black hole primary in the X-ray nova XTE J1118+480 in quiescence at L_x = 4 x 10^{-9} of the Eddington luminosity. The Chandra, HST and MMT...
X-Ray Jet Emission from the Black Hole X-Ray Binary XTE J1550-564 with Chandra in 2000 (2002)
Tomsick, John A., Corbel, Stephane, Fender, Rob, Miller, Jon M., Orosz, Jerome A., Tzioumis, Tasso, ...
We have discovered an X-ray jet due to material ejected from the black hole X-ray transient XTE J1550-564. The discovery was first reported by Corbel et al. (Science, 298, 196 and astro-ph/0210224),...
The eclipsing millisecond pulsar PSR J1740-5340 and its red straggler companion (2002)
Orosz, Jerome A, Van Kerkwijk, Marten H.
We present a high-resolution echelle spectrum taken with the Very Large Telescope and analyse archival Hubble Space Telescope photometry of the recently identified companion of the eclipsing...
Inventory of Black Hole Binaries (2002)
A small group of X-ray binaries currently provides the best evidence for the existence of stellar-mass black holes. These objects are interacting binary systems where the X-rays arise from accretion...
X-ray QPOs in Black-Hole Binary Systems (2002)
Remillard, Ronald A., Muno, Michael P., McClintock, Jeffrey E., Orosz, Jerome A.
We briefly review the properties and physical consequences of quasiperiodic oscillations (QPOs) seen on many occasions in the X-ray emission from black-hole binary systems. We also report on the...
Remillard, Ronald A., Muno, Michael P., McClintock, Jeffrey E., Orosz, Jerome A.
We continue to investigate the X-ray timing and spectral properties of the black hole binary, XTE J1550-564. For three different groups of observations, we show evidence that two high-frequency QPOs...
Dynamical Evidence for a Black Hole in the Microquasar XTE J1550-564 (2001)
Orosz, Jerome A., Groot, Paul J., Van Der Klis, Michiel, McClintock, Jeffrey E., Garcia, Michael R., Zhao, Ping, ...
Optical spectroscopic observations of the companion star (type G8IV to K4III) in the microquasar system XTE J1550-564 reveal a radial velocity curve with a best fitting spectroscopic period of P_sp =...
Gelino, Dawn M., Harrison, Thomas E., Orosz, Jerome A.
We have obtained optical and infrared photometry of the soft x-ray transient prototype V616 Mon (A0620-00). From this photometry, we find a spectral type of K4 for the secondary star in the system,...
The Long-Period Orbit of the Dwarf Nova V630 Cassiopaeia (2001)
Orosz, Jerome A., Thorstensen, John R., Honeycutt, R. Kent
We present extensive spectroscopy and photometry of the dwarf nova V630 Cassiopeiae. A late-type (K4-5) absorption spectrum is easily detectable, from which we derive the orbital parameters. We find...
A Black Hole in the Superluminal source SAX J1819.3-2525 (V4641 Sgr) (2001)
Orosz, Jerome A., Kuulkers, Erik, Van Der Klis, Michiel, McClintock, Jeffrey E., Garcia, Michael R., Callanan, Paul J., ...
(shortened) Spectroscopic observations of the fast X-ray transient and superluminal jet source SAX J1819.3-2525 (V4641 Sgr) reveal a best fitting period of P_spect=2.81678 +/- 0.00056 days and a...
Optical and Infrared Photometry of the Micro-Quasar GRO J1655-40 in Quiescence (2001)
Greene, Jenny, Bailyn, Charles D., Orosz, Jerome A.
We present BVIJK photometry of the black-hole candidate GRO J1655-40 in full quiescence. We report a refined orbital period of 2.62191 +/- 0.00020 days. The light curves are dominated by ellipsoidal...
The use of the NEXTGEN model atmospheres for cool giants in a light curve synthesis code (2000)
Orosz, Jerome A., Hauschildt, Peter H.
We have written a light curve synthesis code that makes direct use of model atmosphere specific intensities, in particular the NEXTGEN model atmosphere grid for cool giants (T_eff
Optical Observations of the Black Hole Candidate XTE J1550-564 During Re-Flare and Quiescence (2000)
Jain, Raj K., Bailyn, Charles D., Orosz, Jerome A., McClintock, Jeffrey E., Sobczak, Gregory J., Remillard, Ronald A.
We report optical monitoring of the soft X-ray transient XTE J1550-564 during the 1999 season (4 January 1999 to 24 August 1999). The first optical observations available in 1999 show that the peak...
Complete RXTE Spectral Observations of the Black Hole X-ray Nova XTE J1550-564 (2000)
Sobczak, Gregory J., McClintock, Jeffrey E., Remillard, Ronald A., Cui, Wei, Levine, Alan M., Morgan, Edward H., ...
We report on the X-ray spectral behavior of the exceptionally bright X-ray nova XTE J1550-564 during its 1998-99 outburst. Our study is based on 209 pointed observations using the PCA and HEXTE...
Sobczak, Gregory J., McClintock, Jeffrey E., Remillard, Ronald A., Cui, Wei, Levine, Alan M., Morgan, Edward H., ...
Utilizing observations obtained with the Rossi X-ray Timing Explorer, we examine correlations between the properties of 0.08-22 Hz variable frequency QPOs and the X-ray spectral parameters for the...
Orosz, Jerome A., Wade, Richard A.
We report additional photometric CCD observations of KPD 0422+5421, a binary with an orbital period of 2.16 hours which contains a subdwarf B star (sdB) and a white dwarf. There are two main results...
The Optical Light Curves of Cygnus X-2 (V1341 Cyg) and the Mass of its Neutron Star (1999)
Orosz, Jerome A., Kuulkers, Erik
We present U, B and V light curves (taken from the literature) of the low mass X-ray binary Cygnus X-2. The ``lower envelope'' of the light curves folded on the orbital period are ellipsoidal. We fit...
The Post-Common Envelope and Pre-Cataclysmic Binary PG 1224+309 (1998)
Orosz, Jerome A., Wade, Richard A., Harlow, Jason J. B., Thorstensen, John R., Taylor, Cynthia J., Eracleous, Michael
We have made extensive spectroscopic and photometric observations of PG 1224+309, a close binary containing a DA white dwarf primary and an M4+ secondary. The H alpha line is in emission due to...
RXTE Spectral Observations of the 1996-97 Outburst of the Microquasar GRO J1655-40 (1998)
Sobczak, Gregory J., McClintock, Jeffrey E., Remillard, Ronald A., Bailyn, Charles D., Orosz, Jerome A.
Excellent coverage of the entire 16-month 1996-97 outburst cycle of GRO J1655-40 was provided by RXTE. We present a full spectral analysis of these data, which includes 52 PCA spectra from 2.5-20 keV...
KPD 0422+5421: A New Short Period Subdwarf B/White Dwarf Binary (1998)
Koen, C., Orosz, Jerome A., Wade, Richard A.
The sdB star KPD 0422+5421 was discovered to be a single-lined spectroscopic binary with a period of P=0.0901795 +/- (3\times 10^{-7}) days (2 hours, 10 minutes). The U and B light curves display an...
Orbital Parameters for the Soft X-ray Transient 4U 1543-47: Evidence for a Black Hole (1997)
Orosz, Jerome A., Jain, Raj K., Bailyn, Charles D., McClintock, Jeffrey E., Remillard, Ronald A.
(shortened) Spectroscopic observations of the soft X-ray transient 4U 1543-47 reveal a radial velocity curve with a period of P=1.123 +/- 0.008 days and a semi-amplitude of K_2 = 124 +/- 4 km/sec....
Optical Gamma Ray Burst Followup at Kitt Peak National Observatory (1997)
James E. Rhoads, Bruce Carney, F. Claver, Arthur D. Code, Andrew Cole, Arjun Dey, ...
. The discovery of probable X-ray, optical, and radio counterparts to Gamma Ray Bursts (GRBs) may allow significant advances in GRB research. More data are sorely needed, however. We have a target of...
The Mass Distribution of Stellar Black Holes (1997)
Bailyn, Charles D., Jain, Raj K., Coppi, Paolo, Orosz, Jerome A.
We examine the distribution of masses of black holes in transient low mass X-ray binary systems. A Bayesian analysis suggests that it is probable that six of the seven systems with measured mass...
Multifrequency Observations of the Galactic Microquasars GRS1915+105 and GROJ1655-40 (1997)
Remillard, Ronald A., Morgan, Edward H., McClintock, Jeffrey E., Bailyn, Charles D., Orosz, Jerome A., Greiner, Jochen
The two galactic `microquasars' with superluminal radio jets have been quite active during 1996, generatinga variety of studies involving both NASA and ground-based observatories. GRS~1915+105 has...
An Optical Precursor to the Recent X-ray Outburst of the Black Hole Binary GRO J1655-40 (1997)
Orosz, Jerome A., Remillard, Ronald A., Bailyn, Charles D., McClintock, Jeffrey E.
The All Sky Monitor on the Rossi X-ray Timing Explorer detected an X-ray (2-12 keV) outburst from the black hole binary GRO J1655-40 beginning near April 25, 1996. Optical photometry obtained April...
Orosz, Jerome A., Bailyn, Charles D.
We report photometric and spectroscopic observations of the black hole binary GRO J1655-40 in complete quiescence. In contrast to the 1995 photometry, the light curves from 1996 are almost completely...