Andrew Janzen, Eve M. Klopf, Felix J. Lockman, Rodolfo Montez Jr, Kurt Plarre, Nau Raj Pokhrel, Robert J. Selina, A. Togi, Mehrnoush Zomederis
Published 2015-11-16Version 1
Sensitive 21cm HI observations have been made with the Green Bank Telescope toward the newly-discovered Local Group dwarf galaxy Hydra II, which may lie within the leading arm of the Magellanic Stream. No neutral hydrogen was detected. Our 5-sigma limit of MHI < 210 solar masses for a 15 km/s linewidth gives a gas-to-luminosity ratio MHI/L_V < 2.6 x 10^{-2} Mo / Lo. The limits on HI mass and MHI/L_V are typical of dwarf galaxies found within a few hundred kpc of the Milky Way. Whatever the origin of Hydra II, its neutral gas properties are not unusual.
Comments: Accepted for publication in Astronomy & Astrophysics
The HI Content of Galaxies in Groups and Clusters as Measured by ALFALFA
Search for PAHs in the Perseus molecular cloud with the Green Bank Telescope
The Search for HI Emission at z $\approx0.4$ in Gravitationally Lensed Galaxies with the Green Bank Telescope
![QR code for arXiv:1511.05069 [astro-ph.GA]](http://oss.arxitics.com/images/favicon.svg)