Arp102B: An ADAF and a Torus ?
| dc.creator | Chary, Ranga-Ram | |
| dc.date | 2006-12-27 | |
| dc.date.accessioned | 2026-07-07T07:37:09Z | |
| dc.date.available | 2026-07-07T07:37:09Z | |
| dc.description | Arp102B is a nearby radio galaxy which displays the presence of double peaked Balmer emission lines. Sub-arcsec Keck mid-infrared imaging and Spitzer spectroscopy reveal a spatially compact mid-infrared source which displays tentative evidence for variability. The F$_ν\proptoν^{-1.2}$ spectral energy distribution is suggestive of an advection dominated accretion flow. The absence of dust features over the 5-40 micron range make it unlikely that thermal dust emission dominates the mid-infrared luminosity. We also detect the presence of molecular hydrogen in emission which is asymmetrically redshifted by ~500-1000 km/s from the systemic velocity of the galaxy. Since the forbidden, low ionization lines in this galaxy are at the systemic velocity, we suggest that the molecular hydrogen emission arises from a rotating molecular gas structure surrounding the nuclear black hole at a distance of ~1 pc. | |
| dc.description | 4 pages, 3 figures, Conference proceedings to appear in "The Central Engine of Active Galactic Nuclei", ed. L. C. Ho and J.-M. Wang (San Francisco: ASP) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0612737 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0612737 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/120678 | |
| dc.subject | Astrophysics | |
| dc.title | Arp102B: An ADAF and a Torus ? | |
| dc.type | text |