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- Goddard Space Flight CenterUS262 papers
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16 papers · 1 filter
Multiwavelength Observations of the Runaway Binary HD 15137
M. Virginia McSwain, Michael De Becker, Mallory S. E. Roberts +6
HD 15137 is an intriguing runaway O-type binary system that offers a rare opportunity to explore the mechanism by which it was ejected from the open cluster of its birth. Here we p…
Near Infrared Spectroscopic Study of V1647 Ori
S. D. Brittain, T. W. Rettig, T. Simon +2
We present new high-resolution infrared echelle spectra of V1647 Ori, the young star that illuminates McNeil's nebula. From the start, V1647 Ori has been an enigmatic source that h…
The Case of AB Aurigae's Disk in Polarized Light: Is There Truly a Gap?
Marshall D. Perrin, Glenn Schneider, Gaspard Duchene +4
Using the NICMOS coronagraph, we have obtained high-contrast 2.0 micron imaging polarimetry and 1.1 micron imaging of the circumstellar disk around AB Aurigae on angular scales of…
Sounding stellar cycles with Kepler - preliminary results from ground-based chromospheric activity measurements
C. Karoff, T. S. Metcalfe, W. J. Chaplin +6
Due to its unique long-term coverage and high photometric precision, observations from the Kepler asteroseismic investigation will provide us with the possibility to sound stellar…
Stellar Astrophysics with a Dispersed Fourier Transform Spectrograph. I. Instrument Description and Orbits of Single-lined Spectroscopic Binaries
Bradford B. Behr, Arsen R. Hajian, Andrew T. Cenko +4
We have designed and constructed a second-generation version of the Dispersed Fourier Transform Spectrograph, or dFTS. This instrument combines a spectral interferometer with a dis…
Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars
F. Camilo, P. S. Ray, S. M. Ransom +24
Sixteen pulsars have been discovered so far in blind searches of photons collected with the Large Area Telescope on the Fermi Gamma-ray Space Telescope. We here report the discover…