AKARI/IRC Near-infrared Spectral Atlas of Galactic Planetary Nebulae
Abstract
Near-infrared (2.5-5.0 μm) low-resolution (λ/Δλ ∼ 100) spectra of 72 Galactic planetary nebulae (PNe) were obtained with the Infrared Camera (IRC) in the post-helium phase. The IRC, equipped with a 1‧ × 1‧ window for spectroscopy of a point source, was capable of obtaining near-infrared spectra in a slit-less mode without any flux loss due to a slit. The spectra show emission features including hydrogen recombination lines and the 3.3-3.5 μm hydrocarbon features. The intensity and equivalent width of the emission features were measured by spectral fitting. We made a catalog providing unique information on the investigation of the near-infrared emission of PNe. In this paper, details of the observations and characteristics of the catalog are described.
- Publication:
-
The Astronomical Journal
- Pub Date:
- April 2016
- DOI:
- 10.3847/0004-6256/151/4/93
- arXiv:
- arXiv:1604.00884
- Bibcode:
- 2016AJ....151...93O
- Keywords:
-
- catalogs;
- planetary nebulae: general;
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- Catalog data available at http://www.ir.isas.jaxa.jp/AKARI/Archive/Catalogues/IRC_PNSPC/