publication . Preprint . Article . Other literature type . 2007

A Cometary Bow Shock and Mid-Infrared Emission Variations Revealed in Spitzer Observations of HD 34078 and IC 405

France, Kevin; McCandliss, Stephan R.; Lupu, Roxana E.;
Open Access English
  • Published: 01 Feb 2007
Abstract
We present new infrared observations of the emission/reflection nebula IC 405 obtained with the Spitzer Space Telescope. Infrared images in the four IRAC bands (3.6, 4.5, 5.8, and 8.0 um) and two MIPS bands (24 and 70 um) are complemented by IRS spectroscopy (5-30 um) of two nebular filaments. The IRAC (8.0 um) and MIPS imaging shows evidence of a bow shock associated with the runaway O9.5V star, HD 34078, created by the interaction between the star and nebular material. The ratio of emission at 24 to 70 um is higher in the immediate vicinity of HD 34078 than in the outer filaments, providing evidence for elevated dust temperatures (T_d > 90 K) in the shock regi...
Subjects
free text keywords: Astrophysics, Space and Planetary Science, Astronomy and Astrophysics, Reflection nebula, Astronomy, Spectral line, Bow shock (aerodynamics), Infrared, Spitzer Space Telescope, Physics, Spectroscopy, Emission spectrum, Ionization
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publication . Preprint . Article . Other literature type . 2007

A Cometary Bow Shock and Mid-Infrared Emission Variations Revealed in Spitzer Observations of HD 34078 and IC 405

France, Kevin; McCandliss, Stephan R.; Lupu, Roxana E.;