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An upper limit for the water outgassing rate of the main-belt comet 176P/LINEAR observed with Herschel/HIFI
M. de Val-Borro, L. Rezac, P. Hartogh +15
176P/LINEAR is a member of the new cometary class known as main-belt comets (MBCs). It displayed cometary activity shortly during its 2005 perihelion passage that may be driven by…
Keck NIRSPEC Radial Velocity Observations of Late-M dwarfs
Angelle Tanner, Russel White, John Bailey +5
We present the results of an infrared spectroscopic survey of 23 late-M dwarfs with the NIRSPEC echelle spectrometer on the Keck II telescope. Using telluric lines for wavelength c…
Interstellar Carbodiimide (HNCNH) - A New Astronomical Detection from the GBT PRIMOS Survey via Maser Emission Features
Brett A. McGuire, Ryan A. Loomis, Cameron M. Charness +6
In this work, we identify carbodiimide (HNCNH), which is an isomer of the well-known interstellar species cyanamide (NH2CN), in weak maser emission, using data from the GBT PRIMOS…
Herschel measurements of the D/H and 16O/18O ratios in water in the Oort-cloud comet C/2009 P1 (Garradd)
D. Bockelée-Morvan, N. Biver, B. Swinyard +19
The D/H ratio in cometary water is believed to be an important indicator of the conditions under which icy planetesimals formed and can provide clues to the contribution of comets…
First Detection of Near-Infrared Line Emission from Organics in Young Circumstellar Disks
A. M. Mandell, J. Bast, E. F. van Dishoeck +4
We present an analysis of high-resolution spectroscopy of several bright T Tauri stars using the VLT/CRIRES and Keck/NIRSPEC spectrographs, revealing the first detections of emissi…