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695 papers · 1 filter
Lack of PAH emission toward low-mass embedded young stellar objects
V. C. Geers, E. F. van Dishoeck, K. M. Pontoppidan +4
PAHs have been detected toward molecular clouds and some young stars with disks, but have not yet been associated with embedded young stars. We present a sensitive mid-IR spectrosc…
The formation of the black hole in the X-ray binary system V404 Cyg
J. C. A. Miller-Jones, P. G. Jonker, G. Nelemans +5
Using new and archival radio data, we have measured the proper motion of the black hole X-ray binary V404 Cyg to be 9.2+/-0.3 mas/yr. Combined with the systemic radial velocity fro…
An Accurate Determination of the Optical Periodic Modulation in the X-Ray Binary SAX J1808.4-3658
Zhongxiang Wang, Cees Bassa, Andrew Cumming +1
We report on optical imaging of the X-ray binary SAX J1808.4-3658 with the 8-m Gemini South Telescope. The binary, containing an accretion-powered millisecond pulsar, appears to ha…
Variable Intrinsic Absorption in Mrk 279
Jennifer E. Scott, Nahum Arav, Jack R. Gabel +5
We examine the variability in the intrinsic absorption in the Seyfert 1 galaxy Mrk 279 using three epochs of observations from the Far Ultraviolet Spectroscopic Explorer (FUSE) and…
Super Earth Explorer: A Coronagraphic Off-Axis Space Telescope
J. Schneider, A. Boccaletti, D. Mawet +12
The Super-Earth Explorer is an Off-Axis Space Telescope (SEE-COAST) designed for high contrast imaging. Its scientific objective is to make the physico-chemical characterization of…
Chandra and Swift observations of the quasi-persistent neutron star transient EXO 0748-676 back to quiescence
N. Degenaar, R. Wijnands, M. T. Wolff +8
The quasi-persistent neutron star X-ray transient and eclipsing binary EXO 0748-676 recently started the transition to quiescence following an accretion outburst that lasted more t…