Mikles, Valerie J., Varniere, Peggy, Eikenberry, Stephen S., Rodriguez, Jerome, Rothstein, Dave
It is widely believed that the low frequency quasi-periodic X-ray oscillations observed in microquasars are correlated to, but do not originate at, the physical radius of the inner edge of the...
Mikles, Valerie J., Eikenberry, Stephen S., Bandyopadhyay, Reba M., Muno, Michael P.
We present X-ray and infrared observations of the X-ray source CXOGC J174536.1-285638. Previous observations suggest that this source may be an accreting binary with a high-mass donor (HMXB) or a...
Mikles, Valerie J., Eikenberry, Stephen S., Bandyopadhyay, Reba M., Muno, Michael P.
We present X-ray and infrared observations of the X-ray source CXOGC J174536.1-285638. Previous observations suggest that this source may be an accreting binary with a high-mass donor (HMXB) or a...
Bandyopadhyay, Reba M., Eikenberry, Stephen S., Dewitt, Curtis, Gosling, Andrew J., Muno, Michael P.
I describe the IR and X-ray campaign we have undertaken to determine the nature of the faint discrete X-ray source population discovered by Chandra in the Galactic Center. These results will provide...
Mikles, Valerie J., Eikenberry, Stephen S., Muno, Michael P., Bandyopadhyay, Reba M.
We present X-ray and infrared observations of the X-ray source CXOGC J174536.1-285638 (hereafter, Edd-1). The spectrum of the X-ray source has a very prominent Fe 6.7 keV emission feature and the...
FLAMINGOS-2: A Near-IR Multi-Object Spectrometer Ideal for Surveying the Galactic Center (2008)
Raines, S. Nicholas, Eikenberry, Stephen S., Bandyopadhyay, Reba M.
FLAMINGOS-2 (PI: S. Eikenberry) is a $5M facility-class near-infrared (1-2.5 micron) multi-object spectrometer and wide-field imager being built at the University of Florida for Gemini South. Here we...
The FLAMINGOS-2 Galactic Center Survey (2008)
Upon commissioning on Gemini South, FLAMINGOS-2 will be one of the most powerful wide-field near-infrared imagers and multi-object spectrographs ever built for use on 8-meter-class telescopes. In...
Bandyopadhyay, Reba M., Eikenberry, Stephen S., Dewitt, Curtis, Gosling, Andrew J., Muno, Michael P.
I describe the IR and X-ray campaign we have undertaken to determine the nature of the faint discrete X-ray source population discovered by Chandra in the Galactic Center. These results will provide...
Stabilized-speckle integral field spectroscopy: SPIFS (2008)
Eikenberry, Stephen S., Keremedjiev, Mark, Carson, Joseph C.
We describe an instrument concept and basic feasibility study for a new observational technique which we call Stabilized-sPeckle Integral Field Spectroscopy (SPIFS). SPIFS will enable, under certain...
Mentuch, Erin, Scott, Alan D., Abraham, Roberto G., Barton, Elizabeth J., Bershady, Matthew A., Bland-Hawthorn, Joss, ...
Abstract not available.
Mentuch, Erin, Scott, Alan D., Abraham, Roberto G., Barton, Elizabeth J., Bershady, Matthew A., Bland-Hawthorn, Joss, ...
Abstract not reproduced here by request of the publisher. The text is available from: http://dx.doi.org/10.1117/12.789692.
HST/NICMOS Observations of Fast Infrared Flickering in the Microquasar GRS 1915+105 (2007)
Eikenberry, Stephen S., Patel, Shannon G., Rothstein, David M., Remillard, Ronald, Pooley, Guy G., Morgan, Edward H.
We report infrared observations of the microquasar GRS 1915+105 using the NICMOS instrument of the Hubble Space Telescope during 9 visits in April-June 2003. During epochs of high X-ray/radio...
Observations of Rapid Disk-Jet Interaction in GRS 1915+105 (2005)
Rothstein, David M., Eikenberry, Stephen S., Matthews, Keith
We present evidence that ~ 30 minute episodes of jet formation in GRS 1915+105 may sometimes be a superposition of smaller, faster phenomena. Based on observations in 2002 July using the Rossi X-ray...
Observations of Rapid Disk-Jet Interaction in the Microquasar GRS 1915+105 (2005)
Rothstein, David M., Eikenberry, Stephen S., Matthews, Keith
We present evidence that ~ 30 minute episodes of jet formation in the Galactic microquasar GRS 1915+105 may sometimes entirely be a superposition of smaller, faster phenomena. We base this conclusion...
The Connection between W31, SGR 1806-20, & LBV 1806-20: Distance, Extinction, and Structure (2003)
Corbel, S., Eikenberry, Stephen S.
We present new millimeter and infrared spectroscopic observations towards the radio nebula G10.0-0.3, which is powered by the wind of the Luminous Blue Variable star LBV 1806-20, also closely...
A Magnetic Bomb Scenario for Relativistic Jet Events in the Microquasar GRS 1915+105 (2003)
We present a magnetic bomb scenario for the multiwavelength behavior during "Type B" relativistic jet events in the microquasar GRS 1915+105. These events are characterized by a hard X-ray dip which...
Moon, Dae-Sik, Eikenberry, Stephen S., Wasserman, Ira M.
We present the results of two extensive Rossi X-ray Timing Explorer observations of large X-ray flaring episodes from the high-mass X-ray binary pulsar LMC X-4. Light curves during the flaring...
A New Search Technique for Short Orbital Period Binary Pulsars (2002)
Ransom, Scott M., Cordes, James M., Eikenberry, Stephen S.
We describe a new and efficient technique which we call sideband or phase-modulation searching that allows one to detect short period binary pulsars in observations longer than the orbital period....
SMC X-1 As An Intermediate-Stage Flaring X-ray Pulsar (2002)
Moon, Dae-Sik, Eikenberry, Stephen S., Wasserman, Ira M.
We present Rossi X-ray Timing Explorer observations of the X-ray pulsar SMC X-1. The source is highly variable on short time scales (< 1 h), exhibiting apparent X-ray flares occupying a significant...
Fast Infrared Sub-Flares From GRS 1915+105 (2002)
Rothstein, David M., Eikenberry, Stephen S.
We report the discovery of fast (~ 100 sec) 2.2 micron flares from the microquasar GRS 1915+105, which are superimposed on longer (~ 30 min), brighter flares corresponding to episodes of jet...
Fourier Techniques for Very Long Astrophysical Time Series Analysis (2002)
Ransom, Scott M., Eikenberry, Stephen S., Middleditch, John
In this paper, we present an assortment of both standard and advanced Fourier techniques that are useful in the analysis of astrophysical time series of very long duration -- where the observation...
The Environments of Soft Gamma-Ray Repeaters: A Brief & Biased Review (2002)
I review some recent developments in our understanding of the environments of soft gamma-ray repeaters. I pay particular attention to the apparent association betwwen SGR 1900+14 and SGR 1806-20 and...
Moon, Dae-Sik, Eikenberry, Stephen S.
We report the discovery of coupling between periodic and aperiodic variability and ~12-mHz X-ray quasi-periodic oscillations (QPOs) from the X-ray binary pulsar Her X-1 using data from the Rossi...
Moon, Dae-Sik, Pirger, Bruce E., Eikenberry, Stephen S.
We report the design, operation, and performance of a next generation high-speed data acquisition system for multi-channel infrared and optical photometry based on the modern technologies of Field...
Moon, Dae-Sik, Eikenberry, Stephen. S.
We report the discovery of milli-hertz (mHz) quasi-periodic oscillations (QPOs) and QPO-modulated pulsations during large X-ray flares from the high-mass X-ray binary pulsar LMC X-4 using data from...
A Binary Millisecond Pulsar in Globular Cluster NGC6544 (2000)
Ransom, Scott M., Greenhill, Lincoln J., Herrnstein, James R., Manchester, Richard N., Camilo, Fernando, Eikenberry, Stephen S., ...
We report the detection of a new 3.06 ms binary pulsar in the globular cluster NGC6544 using a Fourier-domain ``acceleration'' search. With an implied companion mass of ~0.01 solar masses and an...
On the Mass-Donating Star in GRS 1915+105 (2000)
Eikenberry, Stephen S., Bandyopadhyay, Reba M.
We present an analysis of constraints on the companion mass for the Galactic microquasar GRS 1915+105. Using the known inclination angle and stability of the jet axis, we can rule out massive ($M_s...
Spectroscopy of Infrared Flares from the Microquasar GRS 1915+105 (1998)
Eikenberry, Stephen S., Matthews, Keith, Murphy Jr., Thomas W., Nelson, Robert W., Morgan, Edward H., Remillard, Ronald A., ...
We present near-infrared medium-resolution ($R \sim 875$) spectra of the microquasar GRS 1915+105 on 1997 August 13-15 UTC from the Hale 200-inch telescope. The spectra showed broad emission lines of...
Time Evolution and the Nature of the Near-Infrared Jets in GRS1915+105 (1996)
Eikenberry, Stephen S., Fazio, Giovanni G.
We observed the galactic microquasar GRS1915+105 in the K ($2.2 \mu$m) band on October 16 and 17, 1995 UTC using the COB infrared (IR) imager on the Kitt Peak National Observatory 2.1-m telescope...
The Infrared to Gamma-Ray Pulse Shape of the Crab Nebula Pulsar (1996)
Eikenberry, Stephen S., Fazio, Giovanni G.
We analyze the pulse shape of the Crab Nebula pulsar in the near-infrared, optical, ultraviolet, X-ray, and gamma-ray bands, including previously unpublished ROSAT HRI observations. We show that, in...