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19 papers · 1 filter
The mass of the Mars-sized exoplanet Kepler-138 b from transit timing
Daniel Jontof-Hutter, Jason F. Rowe, Jack J. Lissauer +2
Extrasolar planets that pass in front of their host star (transit) cause a temporary decrease in the apparent brightness of the star once per orbit, providing a direct measure of t…
A double white dwarf with a paradoxical origin?
M. C. P. Bours, T. R. Marsh, B. T. Gaensicke +14
We present Hubble Space Telescope UV spectra of the 4.6 h period double white dwarf SDSS J125733.63+542850.5. Combined with Sloan Digital Sky Survey optical data, these reveal that…
Spatially Resolved Spitzer-IRS Spectral Maps of the Superwind in M82
P. Beirão, L. Armus, M. D. Lehnert +12
We have mapped the superwind/halo region of the nearby starburst galaxy M82 in the mid-infrared with . The spectral regions covered include the H, [NeII]…
Planets Around Low-Mass Stars (PALMS). V. Age-Dating Low-Mass Companions to Members and Interlopers of Young Moving Groups
Brendan P. Bowler, Evgenya L. Shkolnik, Michael C. Liu +22
We present optical and near-infrared adaptive optics (AO) imaging and spectroscopy of 13 ultracool (>M6) companions to late-type stars (K7-M4.5), most of which have recently been i…
HST/COS Detection of the Spectrum of the Subdwarf Companion of KOI-81
Rachel A. Matson, Douglas R. Gies, Zhao Guo +5
KOI-81 is a totally eclipsing binary discovered by the Kepler mission that consists of a rapidly rotating B-type star and a small, hot companion. The system was forged through larg…
Herschel PACS and SPIRE spectroscopy of the Photodissociation Regions associated with S 106 and IRAS 23133+6050
D. J. Stock, M. G. Wolfire, E. Peeters +4
Photodissociation regions (PDRs) contain a large fraction of all of the interstellar matter in galaxies. Classical examples include the boundaries between ionized regions and molec…