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Constraining the X-ray and Cosmic Ray Ionization Chemistry of the TW Hya Protoplanetary Disk: Evidence for a Sub-interstellar Cosmic Ray Rate
L. Ilsedore Cleeves, Edwin A. Bergin, Chunhua Qi +2
We present an observational and theoretical study of the primary ionizing agents (cosmic rays and X-rays) in the TW Hya protoplanetary disk. We use a set of resolved and unresolved…
Cosmology with the SPHEREX All-Sky Spectral Survey
Olivier Doré, Jamie Bock, Matthew Ashby +30
SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) ( http://spherex.caltech.edu ) is a proposed all-sky spectroscopic survey sat…
G11.92-0.61-MM2: A Bonafide Massive Prestellar Core?
C. J. Cyganowski, C. L. Brogan, T. R. Hunter +6
Core accretion models of massive star formation require the existence of stable massive starless cores, but robust observational examples of such objects have proven elusive. We re…
The ancient heritage of water ice in the solar system
L. Ilsedore Cleeves, Edwin A. Bergin, Conel M. O'D. Alexander +4
Identifying the source of Earth's water is central to understanding the origins of life-fostering environments and to assessing the prevalence of such environments in space. Water…
Complex organic molecules during low-mass star formation: Pilot survey results
Karin I. Oberg, Trish Lauck, Dawn Graninger
Complex organic molecules (COMs) are known to be abundant toward some low-mass young stellar objects (YSOs), but how these detections relate to typical COM abundance are not yet un…
Some like it cold: molecular emission and effective dust temperatures of dense cores in the Pipe Nebula
Jan Forbrich, Karin Öberg, Charles J. Lada +4
(abridged) [...] Methods: In a continued study of the molecular core population of the Pipe Nebula, we present a molecular-line survey of 52 cores. Previous research has shown a va…