The Dusty disk of the early-type galaxy NGC3656
| Autor: | Henry E. Matthews, Roger H. Hildebrand, Lerothodi L. Leeuw, Jacqueline A. Davidson, C. Darren Dowell |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Physics
010308 nuclear & particles physics 0103 physical sciences Elliptical galaxy Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 010303 astronomy & astrophysics 01 natural sciences Astrophysics::Galaxy Astrophysics Galaxy Dust lane |
| Zdroj: | ISLAND UNIVERSES ISBN: 9781402055720 |
| DOI: | 10.1007/978-1-4020-5573-7_67 |
| Popis: | SHARC II, 350-micron continuum and archival HST J-H band maps are presented of NGC 3656, the brightest of our sample of six elliptical galaxies for which resolved CO gas disks have recently been detected with 7''-spatial-resolution, interferometry mapping. These gas disks confirm the conclusions of earlier results showing optical dust lanes and unresolved CO that implied the common existence of molecular gas in ellipticals and the disk-like structure of this gas. The presented SHARC II mapping results provide the best to date resolved FIR-submm extent of NGC 3656 and of any elliptical galaxy > 40 Mpc, showing that dust of 29 K exists out to at least 1.8 kpc in this galaxy. These new data are used in conjunction with the archival HST maps and other published data to determine dust properties and associations with galactic structures, including dominant heating sources such as nuclear-activity, star-formation or diffuse-stellar radiation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|