VizieR Online Data Catalog: NGC 891 Herschel PACS and SPIRE spectroscopy (Hughes+, 2015)
Abstract
We present Herschel PACS spectroscopic observations of the [CII] 158, [NII] 122, [OI] 63, 145, and [OIII] 88 micron fine-structure lines in NGC 891 taken has part of the Very Nearby Galaxy Survey (P.I.: C. Wilson). Observations were taken on the 28th February and 1st March, 2011, using the unchopped grating scan mode. They were processed from Level 0 to Level 1 using the Herschel Interactive Processing Environment (HIPE) v.9.2 with calibration files FM,41, following the standard pipeline reduction steps for the unchopped observing mode. Level 1 cubes were exported to PACSman v.3.5.2 (Lebouteiller, 2012A&A...548A..91L), where each individual spaxel's spectrum is fit with a Gaussian function and second order polynomial for the line and continuum baseline, respectively. Intensity maps of the integrated flux are created from the individual rasters, also using PACSman, by projecting the rasters onto a common, over-sampled grid with a 3.133 arcsec pixel size. Complete details on the data reduction may be found in the paper.
Our data files are summarised in cubes.dat. Each file is a FITS cube with 8 planes, where each plane contains the following maps: (1.) integrated intensity map in units of W/m2/sr, (2.) integrated intensity error map in units of W/m2/sr, (3.) velocity map in units of km/s, (4.) velocity error map in units of km/s, (5.) full-width at half-maximum map of the line fit in units of km/s, (6.) full-width at half-maximum error map in units of km/s, (7.) continuum map in Jy, and (8.) continuum error map in units of Jy. Please note that the observations consist of raster maps and strips for the [CII], [NII] and [OI] 63 micron lines, and only strips for the remaining lines. The raw data can be retrieved from the Herschel Science Archive (ESA) with the stated OBSIDs. (2 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- October 2014
- DOI:
- 10.26093/cds/vizier.35750017
- Bibcode:
- 2014yCat..35750017H
- Keywords:
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- Galaxies: nearby;
- Galaxies: IR