J/MNRAS/357/732 2MASS photometry of galactic planetary nebulae (Larios+, 2005)
An analysis of 2MASS near-infrared photometry for galactic planetary nebulae.
Larios G.R., Phillips J.P.
<Mon. Not. R. Astron. Soc., 357, 732-752 (2005)>
=2005MNRAS.357..732L 2005MNRAS.357..732L
ADC_Keywords: Surveys ; Planetary nebulae ; Infrared sources
Keywords: surveys - planetary nebulae: general - infrared: ISM
Abstract:
The recently published 2MASS all-sky infrared survey (II/246)
includes JHKs photometry of over 300 million sources. It also provides
sizes and aspect ratios for the ∼0.55 per cent of objects that appear
in the extended-source catalogue. Although most of these detections
correspond to galaxies, stars, H II regions, young stellar objects,
reflection nebulae and so forth, a number of them also appear to
correspond to galactic planetary nebulae (PNe).
We have used this survey to determine the near-infrared properties of
some 325 known galactic PNe.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 131 325 2MASS NIR measurements of galactic planetary nebulae
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001)
V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name Name of the planetary name
13- 14 I2 h RAh Right ascension (J2000)
16- 17 I2 min RAm Right ascension (J2000)
19- 23 F5.2 s RAs Right ascension (J2000)
25 A1 --- DE- Declination sign (J2000)
26- 27 I2 deg DEd Declination (J2000)
29- 30 I2 arcmin DEm Declination (J2000)
32- 35 F4.1 arcsec DEs Declination (J2000)
37 A1 --- l_Jmag Limit flag on Jmag
38- 43 F6.3 mag Jmag ?=- J magnitude
45- 49 F5.3 mag e_Jmag ?=- rms uncertainty on Jmag
51 A1 --- l_Hmag Limit flag on Hmag
52- 57 F6.3 mag Hmag ?=- H magnitude
59- 63 F5.3 mag e_Hmag ?=- rms uncertainty on Hmag
65 A1 --- l_Ksmag Limit flag on Ksmag
66- 71 F6.3 mag Ksmag ?=- Ks magnitude
73- 77 F5.3 mag e_Ksmag ?=- rms uncertainty on Ksmag
79- 82 F4.1 arcsec QKs ?=- Ks-band semi-major axis
84- 88 F5.3 --- Gamma(Ks) ?=- Aspect ratio
90- 92 I3 deg PA [-90/90]?=- Position angle of the source
major axis
94- 99 F6.2 --- c ?=- Extinction coefficient
101-105 F5.1 arcsec Qrad ?=- Comparative radio (or optical)
dimension
107-112 F6.1 mJy S5GHz ?=- Flux at 5GHz
114-118 F5.2 --- F(H2)/F(Brg) ?=- H2S(1)/Brγ ratio
120-124 F5.3 --- He+/H+ ?=- He+/H+ ratio
128-131 A4 --- Rem Remarks (1)
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Note (1): Remarks as follows:
1 = Source appears extended in 2MASS imaging, but is not contained
in the Extended Source Catalogue
2 = Possible weak contamination of fluxes by field star(s)
3 = Extended nebular emission is observed but weak, and fluxes are
dominated by the central star
4 = Possible strong contamination of fluxes by field star(s)
5 = Possibility of source confusion
6 = Fluxes may be contaminated by bright star diffraction pattern
7 = The size in the 2MASS Extended Source Catalogue appears too
great, and may be affected by the high density of field stars
8 = Source weak, only partially detected; 2MASS sizes may be in error
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 09-Feb-2006