162 citations · 2.3k across the 69 of their papers we have counts for
4 papers · 1 filter
Mapping the Asymmetric Thick Disk: III. The Kinematics and Interaction with the Galactic Bar
Roberta M. Humphreys, Timothy C. Beers, Juan E. Cabanela +4
In the first two papers of this series, Larsen et al (2010a,b) describe our faint CCD survey in the inner Galaxy and map the over-density of Thick Disk stars in Quadrant I (Q1) to…
The Morphology of IRC +10420's Circumstellar Ejecta
Chelsea Tiffany, Roberta M. Humphreys, Terry J. Jones +1
Images of the circumstellar ejecta associated with the post-red supergiant IRC +10420 show a complex ejecta with visual evidence for episodic mass loss. In this paper we describe t…
A Sea Change in Eta Carinae
Andrea Mehner, Kris Davidson, Roberta M. Humphreys +4
Major stellar-wind emission features in the spectrum of Eta Car have recently decreased by factors of order 2 relative to the continuum. This is unprecedented in the modern observa…
SN2010U -- a Luminous Nova in NGC 4214
Roberta M. Humphreys, Jose L. Prieto, Philip Rosenfield +12
The luminosity, light curve, post--maximum spectrum, and lack of a progenitor on deep pre-outburst images suggest that SN 2010U was a luminous, fast nova. Its outburst magnitude is…