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Luminous halos surrounding edge-on d...

Grodnicki, Lauren R.

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Luminous halos surrounding edge-on disk galaxies in the Sloan Digital Sky Survey.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Luminous halos surrounding edge-on disk galaxies in the Sloan Digital Sky Survey./
Author:	Grodnicki, Lauren R.
Description:	82 p.
Notes:	Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4297.
Contained By:	Dissertation Abstracts International71-07B.
Subject:	Physics, Astrophysics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3408531
ISBN:	9781124048680

Luminous halos surrounding edge-on disk galaxies in the Sloan Digital Sky Survey.
Grodnicki, Lauren R.

Luminous halos surrounding edge-on disk galaxies in the Sloan Digital Sky Survey. - 82 p.

Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4297.

Thesis (Ph.D.)--The University of Chicago, 2010.

We present the first measurement of both major-axis and minor-axis average surface brightness profiles of low-redshift (0.009 ≤ z ≤ 0.1), edge-on Sc-Sd galaxies. The 906 objects in our sample have 90% Petrosian radii between 5 kpc and 15 kpc and were selected from the Fourth Data Release of the Sloan Digital Sky Survey. The minor-axis profile extends to 20 kpc above the disk and a limiting surface brightness of 30 mag/arcsec2 . We demonstrate that this surface brightness profile is best fit by an exponential+power-law with slope 2.3 +/- 0.3 in agreement with simulations and star counts around individual galaxies. We attribute the power-law component to a diffuse stellar halo and present the first measurement of such around isolated, late-type galaxies. We also divide our sample according to physical size and show that the minor-axis power-law slopes of the two size categories do not differ by more than 2sigma, also in agreement with simulations. We find that the average major-axis scale length is reap = 4.37 +/- 0.012 kpc, somewhat larger than the typical value for face-on galaxies (see, for example, Kent (1985)). We also present the first measurement of the ratio of the disk luminosity to that of the halo, and provide a context for this ratio.

ISBN: 9781124048680Subjects--Topical Terms:

1671120
Physics, Astrophysics.

Luminous halos surrounding edge-on disk galaxies in the Sloan Digital Sky Survey.
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020 $a 9781124048680
035 $a (UMI)AAI3408531
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100 1 $a Grodnicki, Lauren R. $3 1683883
245 1 0 $a Luminous halos surrounding edge-on disk galaxies in the Sloan Digital Sky Survey.
300 $a 82 p.
500 $a Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4297.
500 $a Adviser: Richard Kron.
502 $a Thesis (Ph.D.)--The University of Chicago, 2010.
520 $a We present the first measurement of both major-axis and minor-axis average surface brightness profiles of low-redshift (0.009 ≤ z ≤ 0.1), edge-on Sc-Sd galaxies. The 906 objects in our sample have 90% Petrosian radii between 5 kpc and 15 kpc and were selected from the Fourth Data Release of the Sloan Digital Sky Survey. The minor-axis profile extends to 20 kpc above the disk and a limiting surface brightness of 30 mag/arcsec2 . We demonstrate that this surface brightness profile is best fit by an exponential+power-law with slope 2.3 +/- 0.3 in agreement with simulations and star counts around individual galaxies. We attribute the power-law component to a diffuse stellar halo and present the first measurement of such around isolated, late-type galaxies. We also divide our sample according to physical size and show that the minor-axis power-law slopes of the two size categories do not differ by more than 2sigma, also in agreement with simulations. We find that the average major-axis scale length is reap = 4.37 +/- 0.012 kpc, somewhat larger than the typical value for face-on galaxies (see, for example, Kent (1985)). We also present the first measurement of the ratio of the disk luminosity to that of the halo, and provide a context for this ratio.
590 $a School code: 0330.
650 4 $a Physics, Astrophysics. $3 1671120
690 $a 0596
710 2 $a The University of Chicago. $b Astronomy and Astrophysics. $3 1683884
773 0 $t Dissertation Abstracts International $g 71-07B.
790 1 0 $a Kron, Richard, $e advisor
790 1 0 $a Kent, Stephen M. $e committee member
790 1 0 $a Truran, James W. $e committee member
790 1 0 $a Cudworth, Kyle M. $e committee member
790 $a 0330
791 $a Ph.D.
792 $a 2010
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3408531