activity
19992023
most citedThe GALFA-HI Survey: Data Release 1

216 citations · 1.4k across the 36 of their papers we have counts for

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astro-ph2008★ 130 cited

The Disruption and Fueling of M33

M. E. Putman, J. E. G. Peek, A. Muratov +7

The disruption of the M33 galaxy is evident from its extended gaseous structure. We present new data from the Galactic Arecibo L-Band Feed Array HI (GALFA-HI) Survey that show the…

astro-ph2008

Mapping Hydrogen in the Galaxy, Galactic Halo, and Local Group with ALFA: The GALFA-HI Survey Starting with TOGS

S. J. Gibson, K. A. Douglas, C. Heiles +4

Radio observations of gas in the Milky Way and Local Group are vital for understanding how galaxies function as systems. The unique sensitivity of Arecibo's 305m dish, coupled with…

astro-ph2007★ 3 cited

Cold HI in Turbulent Eddies and Galactic Spiral Shocks

Steven J. Gibson, A. Russell Taylor, Jeroen M. Stil +3

HI 21cm-line self-absorption (HISA) reveals the shape and distribution of cold atomic clouds in the Galactic disk. Many of these clouds lack corresponding CO emission, despite bein…

astro-ph2007

Multiscale Structure in Dust Reflection and Cold HI

Steven J. Gibson

I present 2-D angular power spectra of cold HI emission and optical dust reflection tracing the HI in the Pleiades reflection nebula. This analysis reveals a uniform power-law slop…

astro-ph2005★ 17 cited

CO in HI Self-Absorbed Clouds in Perseus

P. D. Klaassen, R. Plume, S. J. Gibson +2

We have observed 12CO J = 2-1 and J = 1-0, and 13CO J = 1-0 emission in two regions of HI Self-Absorption (HISA) in Perseus: a small, isolated HISA feature called the globule and a…

astro-ph2005★ 30 cited

An Automated Method for the Detection and Extraction of HI Self-Absorption in High-Resolution 21cm Line Surveys

Steven J. Gibson, A. Russell Taylor, Lloyd A. Higgs +2

We describe algorithms that detect 21cm line HI self-absorption (HISA) in large data sets and extract it for analysis. Our search method identifies HISA as spatially and spectrally…