NGC 4102: High-Resolution Infrared Observations Of A Nuclear Starburst Ring
| dc.contributor.utaustinauthor | Lacy, John H. | en_US |
| dc.creator | Beck, Sara C. | en_US |
| dc.creator | Lacy, John H. | en_US |
| dc.creator | Turner, Jean L. | en_US |
| dc.date.accessioned | 2016-04-28T19:34:36Z | |
| dc.date.available | 2016-04-28T19:34:36Z | |
| dc.date.issued | 2010-10 | en |
| dc.description.abstract | The composite galaxy NGC 4102 hosts a LINER nucleus and a starburst. We mapped NGC 4102 in the 12.8 mu m line of [Ne II], using the echelon spectrometer TEXES on the NASA IRTF, to obtain a data cube with 1 ''.5 spatial, and 25 km s(-1) spectral, resolution. Combining near-infrared, radio, and the [Ne II] data shows that the extinction to the starburst is substantial, more than 2 mag at the K band, and that the neon abundance is less than half solar. We find that the star formation in the nuclear region is confined to a rotating ring or disk of 4 ''.3 (similar to 300 pc) diameter, inside the inner Lindblad resonance. This region is an intense concentration of mass, with a dynamical mass similar to 3 x 10(9) M(circle dot), and of star formation. The young stars in the ring produce the [Ne II] flux reported by Spitzer for the entire galaxy. The mysterious blue component of line emission detected in the near-infrared is also seen in [Ne II]; it is not a normal active galactic nucleus outflow. | en_US |
| dc.description.department | Astronomy | en_US |
| dc.description.sponsorship | NSF AST-0607312, AST-0708074 | en_US |
| dc.description.sponsorship | NASA | en_US |
| dc.identifier | doi:10.15781/T2KN65 | |
| dc.identifier.Filename | 2010_10_ngc4102.pdf | en_US |
| dc.identifier.citation | Beck, Sara C., John H. Lacy, and Jean L. Turner. "NGC 4102: High-resolution Infrared Observations of a Nuclear Starburst Ring." The Astrophysical Journal, Vol. 722, No. 2 (Oct., 2010): 1175. | en_US |
| dc.identifier.doi | 10.1088/0004-637x/722/2/1175 | en_US |
| dc.identifier.issn | 0004-637X | en_US |
| dc.identifier.uri | http://hdl.handle.net/2152/34791 | |
| dc.language.iso | English | en_US |
| dc.relation.ispartof | en_US | |
| dc.relation.ispartofserial | Astrophysical Journal | en_US |
| dc.rights | Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. | en_US |
| dc.rights.restriction | Open | en_US |
| dc.subject | galaxies: individual (ngc 4102) | en_US |
| dc.subject | galaxies: kinematics and dynamics | en_US |
| dc.subject | galaxies: starburst | en_US |
| dc.subject | fine-structure lines | en_US |
| dc.subject | star-formation | en_US |
| dc.subject | secular evolution | en_US |
| dc.subject | galaxies | en_US |
| dc.subject | cluster | en_US |
| dc.subject | regions | en_US |
| dc.subject | astronomy & astrophysics | en_US |
| dc.title | NGC 4102: High-Resolution Infrared Observations Of A Nuclear Starburst Ring | en_US |
| dc.type | Article | en_US |