J/ApJ/689/913 Fundamental planes of early-type galaxies (La Barbera+, 2008)
The SDSS-UKIDSS fundamental plane of early-type galaxies.
La Barbera F., Busarello G., Merluzzi P., de la Rosa I.G., Coppola G.,
Haines C.P.
<Astrophys. J., 689, 913-918 (2008)>
=2008ApJ...689..913L 2008ApJ...689..913L
ADC_Keywords: Galaxies, IR ; Galaxies, optical ; Photometry, surface
Keywords: galaxies: evolution - galaxies: fundamental parameters
Abstract:
We derive the fundamental plane (FP) relation for a sample of 1430
early-type galaxies (ETGs) in the optical (r band) and the
near-infrared (K band), by combining SDSS-DR5 and UKIDSS (UKIRT
Infrared Deep Sky Survey, 2007MNRAS.379.1599L 2007MNRAS.379.1599L), second release data.
With such a large, homogeneous data set, we are able to assess the
dependence of the FP on the wave band. Our analysis indicates that the
FP of luminous early-type galaxies is essentially wave
band-independent, with its coefficients increasing at most by 8% from
the optical to the NIR. This finding fits well into a consistent
picture in which the tilt of the FP is not driven by stellar
populations but results from other effects, such as nonhomology. In
this framework, the optical and NIR FPs require more massive galaxies
to be slightly more metal-rich than less massive ones, and to have
highly synchronized ages, with an age variation per decade in mass
smaller than a few percent.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 52 1430 Fundamental Plane (FP) parameters in the r and K
bands for the sample of 1430 early-type galaxies
--------------------------------------------------------------------------------
See also:
II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
J/MNRAS/386/1605 : Luminous K-band selected QSOs from UKIDSS (Maddox+, 2008)
J/AJ/125/1817 : SDSS Early-Type Galaxies Catalog (Bernardi+, 2003)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000)
11- 18 F8.5 deg DEdeg Declination in decimal degrees (J2000)
20- 25 F6.3 [kpc] logRr Log of r band effective radius
27- 32 F6.3 mag/arcsec2 r Effective mean surface brightness in r band
34- 39 F6.3 [kpc] logRK Log of K band effective radius
41- 46 F6.3 mag/arcsec2 K Effective mean surface brightness in K band
48- 52 F5.3 [km/s] logsig Log of DR5 corrected velocity dispersion
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 21-Jan-2011