J/ApJ/633/871 Positions and photometry of HII knots in M51 (Calzetti+, 2005)
Star formation in NGC 5194 (M51a): the panchromatic view from GALEX to Spitzer.
Calzetti D., Kennicutt R.C.Jr, Bianchi L., Thilker D.A., Dale D.A.,
Engelbracht C.W., Leitherer C., Meyer M.J., Sosey M.L., Mutchler M.,
Regan M.W., Thornley M.D., Armus L., Bendo G.J., Boissier S., Boselli A.,
Draine B.T., Gordon K.D., Helou G., Hollenbach D.J., Kewley L.,
Madore B.F., Martin D.C., Murphy E.J., Rieke G.H., Rieke M.J., Roussel H.,
Sheth K., Smith J.D., Walter F., White B.A., Yi S., Scoville N.Z.,
Polletta M., Lindler D.
<Astrophys. J., 633, 871-893 (2005)>
=2005ApJ...633..871C 2005ApJ...633..871C
ADC_Keywords: Interstellar medium ; Galaxies, nearby ; Ultraviolet ;
Infrared sources
Keywords: galaxies: interactions - galaxies: ISM - galaxies: starburst -
ISM: structure
Abstract:
Far-ultraviolet to far-infrared images of the nearby galaxy NGC 5194
(M51a), from a combination of space-based (Spitzer, GALEX, and Hubble
Space Telescope) and ground-based data, are used to investigate local
and global star formation and the impact of dust extinction. The
Spitzer data provide unprecedented spatial detail in the infrared,
down to sizes 500 pc at the distance of NGC 5194. The multiwavelength
set is used to trace the relatively young stellar populations, the
ionized gas, and the dust absorption and emission in HII-emitting
knots, over 3 orders of magnitude in wavelength range.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 73 132 Positions and photometry of the HII knots
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See also:
J/A+A/309/446 : HII Regions in M51 (Petit+, 1996)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- [CKB2005] Source identification (1)
7- 8 I2 h RAh Aperture hour of Right Ascension (J2000)
10- 11 I2 min RAm Aperture minute of Right Ascension (J2000)
13- 16 F4.1 s RAs Aperture second of Right Ascension (J2000)
17 A1 --- DE- Sign of the Declination (J2000)
18- 19 I2 deg DEd Aperture degree of Declination (J2000)
21- 22 I2 arcmin DEm Aperture arcminute of Declination (J2000)
24- 25 I2 arcsec DEs Aperture arcsecond of Declination (J2000)
27- 31 F5.2 [10-7W] LogLFUV Log of the GALEX FUV luminosity (2)
33- 37 F5.2 [10-7W] LogLNUV Log of the GALEX NUV luminosity (2)
39- 43 F5.2 [10-7W] LogLU Log of the ground U band luminosity (2)
45- 49 F5.2 [10-7W] LogLB Log of the ground B band luminosity (2)
51- 55 F5.2 [10-7W] LogLHa Log of the ground Hα luminosity (2)
57- 61 F5.2 [10-7W] LogLPa ? Log of the HST/NICMOS Pα luminosity (2)
63- 67 F5.2 [10-7W] LogL8 Log of the Spitzer/IRAC 8µm luminosity (2)
69- 73 F5.2 [10-7W] LogL24 Log of the Spitzer/IRAC 24µm luminosity (2)
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Note (1): Identification of the HII knots for which photometry has been
measured in 13" diameter apertures. The ID format XX-YY identifies the
background region (XX) where the aperture is located and an internal
progressive number (YY) for the aperture.
Note (2): In units of erg/s. Logarithm of the luminosities in the FUV
(1529Å) and NUV (2312Å) from GALEX, U, B, and Hα
(0.6563µm) from ground-based images, Paα(1.8756µm) from
HST NICMOS, and 8 and 24µm from Spitzer IRAC and MIPS. Stellar
continuum luminosities are given as λL(λ). The central
wavelengths of the U and B filters are 0.3463µm and 0.4312µm,
respectively. Stellar and ionized gas luminosities have been corrected
for the Galactic foreground extinction E(B-V)MW=0.037.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 01-Aug-2006