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J/other/NewA/54.30  NLS1s 2MASS and WISE photometry          (Chen+, 2017)

Infrared photometric study of SDSS selected narrow line Seyfert 1 galaxies. Chen P.S., Liu J.Y., Shan H.G. <New Astron., 54, 30-37 (2017)> =2017NewA...54...30C (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, optical ; Galaxies, IR ; Photometry, infrared Keywords: galaxies: photometry - galaxies: Seyfert - infrared: galaxies Abstract: The infrared photometric study of SDSS selected Narrow Line Seyfert 1 Galaxies (NLS1s) is presented in this paper. We have made cross-identifications for such NLS1s with 2MASS and WISE observations. Finally 992 NLS1s have 2MASS and WISE counterparts. Comparisons of NLS1s with the Broad Line Seyfert 1 (BLS1s) and Seyfert 2 galaxies are made. It is shown that from 1um to 5um NLS1s are redder than BLS1s and Seyfert 2 galaxies possibly due to the richer dust environment in NLS1 nuclei or to the orientation effect while in the longer wavelengths those three kinds of sources have quite similar behavior indicative of radiation mainly from the similar warm starburst-related dust and the related AGN dust. In addition, relations between infrared colors and related (to Hβ) strengths of some important lines are also investigated. The results show that the related strengths of [FeII] 4570Å are positively correlated with infrared colors in the 1-5um region, but negatively correlated with infrared colors in the 12-22um region; the related strength of [OIII] 5007Å are negatively correlated with infrared colors in the 1-5um region, but positively correlated with infrared colors in the 12-22um region; the related strength of [NII]6583Å are also negatively correlated with infrared colors in the 1-5um region, but positively correlated with infrared colors in the 12-22um region. Therefore it is indicated that the behavior of [FeII] 4570Å is just opposed to that for [OIII] 5007Å and [NII] 6583Å This result may be caused by different origins of such lines. Description: In 2006 Zhou et al. (2006, Cat. J/ApJS/166/128) published the largest sample of NLS1s selected from SDSS observations. In this sample 2011 NLS1s are presented. This sample is our main sample. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 127 992 2MASS and WISE observations of SDSS selected NLS1s in this paper
See also: II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) II/311 : WISE All-Sky Data Release (Cutri+ 2012) J/ApJS/166/128 : Narrow line Seyfert 1 galaxies from SDSS-DR3 (Zhou+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- No Identification number 6- 7 I2 h RAh Right ascension (J2000) (1) 9- 10 I2 min RAm Right ascension (J2000) (1) 12- 16 F5.2 s RAs Right ascension (J2000) (1) 18 A1 --- DE- Declination sign (J2000) (1) 19- 20 I2 deg DEd Declination (J2000) (1) 22- 23 I2 arcmin DEm Declination (J2000) (1) 25- 28 F4.1 arcsec DEs Declination (J2000) (1) 30- 37 F8.6 --- z Redshift 39- 44 F6.3 mag Jmag 2MASS J magnitude 46- 50 F5.3 mag e_Jmag ?=- rms uncertainty on Jmag 52- 57 F6.3 mag Hmag 2MASS H magnitude 59- 63 F5.3 mag e_Hmag ?=- rms uncertainty on Hmag 65- 70 F6.3 mag Kmag 2MASS K magnitude 72- 76 F5.3 mag e_Kmag ?=- rms uncertainty on Kmag 78- 83 F6.3 mag W1mag WISE W1 magnitude 85- 89 F5.3 mag e_W1mag rms uncertainty on W1mag 91- 96 F6.3 mag W2mag WISE W2 magnitude 98-102 F5.3 mag e_W2mag rms uncertainty on W2mag 104-109 F6.3 mag W3mag WISE W3 magnitude 111-115 F5.3 mag e_W3mag ?=- rms uncertainty on W3mag 117-121 F5.3 mag W4mag WISE W4 magnitude 123-127 F5.3 mag e_W4mag ?=- rms uncertainty on W4mag
Note (1): Positions from Zhou et al. (2006, Cat. J/ApJS/166/128).
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Nov-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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