J/ApJS/182/216 Surface photometry of Virgo ellipticals (Kormendy+, 2009)
Structure and formation of elliptical and spheroidal galaxies.
Kormendy J., Fisher D.B., Cornell M.E., Bender R.
<Astrophys. J. Suppl. Ser., 182, 216-309 (2009)>
=2009ApJS..182..216K 2009ApJS..182..216K
ADC_Keywords: Galaxies, nearby ; Morphology ; Photometry, surface
Keywords: galaxies: elliptical and lenticular, cD - galaxies: evolution
galaxies: formation - galaxies: nuclei - galaxies: photometry
galaxies: structure
Abstract:
New surface photometry of all known elliptical galaxies in the Virgo
cluster is combined with published data to derive composite profiles
of brightness, ellipticity, position angle, isophote shape, and color
over large radius ranges. These provide enough leverage to show that
Sersic logI∝r1/n functions fit the brightness profiles I(r)
of nearly all ellipticals remarkably well over large dynamic ranges.
Therefore, we can confidently identify departures from these profiles
that are diagnostic of galaxy formation. Finally, we verify that there
is a strong dichotomy between elliptical and spheroidal galaxies.
Their properties are consistent with our understanding of their
different formation processes: mergers for ellipticals and conversion
of late-type galaxies into spheroidals by environmental effects and by
energy feedback from supernovae.
Description:
Based on observations made with the NASA/ESA Hubble Space Telescope,
obtained from the Data Archive at STScI, the Canada-France-Hawaii
Telescope (CFHT) and in part on observations obtained with the
Hobby-Eberly Telescope (HET).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
galaxies.dat 49 43 Galaxies list
table3.dat 39 2838 Composite surface photometry
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See also:
VII/39 : Bibliography of Surface Photometry of galaxies (Davoust+ 1982)
VII/176 : Elliptical galaxies photometry and spectroscopy (Faber+ 1989)
J/AJ/108/1598 : Virgo cluster ellipticals. III. (Ferrarese+, 1994)
J/A+AS/127/367 : Virgo Photometry Catalogue (VPC) (Young+ 1998)
J/ApJ/517/650 : Surface photometry of dwarf galaxies in Virgo (Ryden+ 1999)
J/other/Ap/43.413 : Nearby elliptical galaxies ellipticity (Andreasyan+ 2000)
J/A+A/423/833 : Photometry in elliptical galaxies (Michard+, 2004)
J/A+A/430/411 : B-band photometry of ellipticals in Virgo (Gavazzi+, 2005)
Byte-by-byte Description of file: galaxies.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Galaxy name
12- 13 I2 h RAh Simbad Hour of Right Ascension (J2000.0)
15- 16 I2 min RAm Simbad Minute of Right Ascension (J2000.0)
18- 21 F4.1 s RAs Simbad Second of Right Ascension (J2000.0)
23 A1 --- DE- Simbad Sign of the Declination (J2000.0)
24- 25 I2 deg DEd Simbad Degree of Declination (J2000.0)
27- 28 I2 arcmin DEm Simbad Arcminute of Declination (J2000.0)
30- 31 I2 arcsec DEs Simbad Arcsecond of Declination (J2000.0)
33- 37 F5.2 mag Bmag ? Simbad B band magnitude
39- 43 F5.2 mag Vmag ? Simbad V band magnitude
45- 49 A5 --- MType Simbad morphological type
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Galaxy name
10- 18 F9.3 arcsec r Distance from galaxy center
19- 25 F7.3 mag/arcsec2 mu V-band surface brightness
26- 31 F6.3 --- ell ? Ellipticity
32- 39 F8.2 deg PA []? Position angle (East of North)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 24-Nov-2009