Implications of H-alpha Observations for Studies of the Cosmic Microwave Background
| dc.creator | McCullough, P. R. | |
| dc.creator | Gaustad, J. E. | |
| dc.creator | Rosing, W. | |
| dc.creator | Van Buren, D. | |
| dc.date | 1999-02-17 | |
| dc.date.accessioned | 2026-07-07T11:46:10Z | |
| dc.date.available | 2026-07-07T11:46:10Z | |
| dc.description | We summarize the relationship between the free-free emission foreground and Galactic H-alpha emission. H-alpha observations covering nearly the entire celestial sphere are described. These data provide a template to isolate and/or remove the effect of Galactic free-free emission from observations of the cosmic microwave background. Spectroscopy and imaging provide two complementary methods for measuring the H-alpha emission. Spectroscopy is favored for its velocity resolution and imaging is favored for its angular resolution. With templates of the three dominant foregrounds, namely synchrotron, thermal dust, and free-free emissions, it may be possible to quantify the location and the brightness of another foreground such as that from rotating dust grains. | |
| dc.description | 20 pages, 7 figures, Submitted to proceeding of Sloan Summit on Microwave Foregrounds, edited by Angelica de Oliveira-Costa & Max Tegmark (ASP, San Francisco, 1999) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9902248 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9902248 | |
| dc.identifier | ASPConf.Ser.181:253,1999 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202129 | |
| dc.subject | Astrophysics | |
| dc.title | Implications of H-alpha Observations for Studies of the Cosmic Microwave Background | |
| dc.type | text |