2002AJ....123..142C

Query : 2002AJ....123..142C

2002AJ....123..142C - Astron. J., 123, 142-158 (2002/January-0)

Spectroscopy of galaxies in the Bootes void.

CRUZEN S., WEHR T., WEISTROP D., ANGIONE R.J. and HOOPES C.

Abstract (from CDS):

We investigate the physical properties of a sample of 26 galaxies in the Bootes void and classify these galaxies based on the emission lines in their spectra. Fourteen galaxies are classified as H II galaxies with properties similar to field H II galaxies. Two of these galaxies, 1432+5302 and 1507+4554, are extreme starburst galaxies. Approximately half of the galaxies with measurable Hα+[N II] emission have elevated rates of star formation. Analysis of the galaxy continua suggests that approximately one-third of the void galaxies have large populations of blue stars. Stellar absorption features from metals in more than half the galaxies in the sample indicate the presence of late-type stars. Emission lines are detected from the H I galaxy 1517+3949 for the first time. Two systems, 1510+4727 and 1517+3956, are identified as closely interacting galaxy pairs, bringing the total number of known galaxy pairs in the void to four. The galaxy 1458+4944 is a LINER, making at least five AGNs in the void. Classifications of eight galaxies in the sample remain unknown. The galaxies in the Bootes void are similar to field emission-line galaxies with respect to stellar populations, emission-line properties, fraction of AGN and fraction of galaxy pairs. This result is inconsistent with some models of galaxy formation in low-density environments.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Formation - Galaxies: Starburst - Cosmology: Large-Scale Structure of Universe

Simbad objects: 34

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Number of rows : 34
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 BD+61 367 * 02 02 11.8214754144 +62 20 45.592373184   10.57 10.11     A5III 13 0
2 HD 21110 * 03 25 23.9190855816 +31 43 51.954709152 10.49 8.80 7.29     K2III 46 0
3 HD 256413 * 06 24 01.8165436392 +19 54 32.309261748 8.88 9.26 9.00     B5III 39 0
4 BD+28 1885 * 10 27 48.9026412216 +27 44 12.397477092   10.69 9.73     G5 11 0
5 BD+40 2491 LP? 12 02 12.5562091248 +39 32 52.435551372   11.05 9.5     M3III 15 0
6 LEDA 3096292 AGN 13 47 48.0 +46 27 02     18.42     ~ 7 0
7 LEDA 3096313 AGN 13 59 53.6 +46 27 18     18.48     ~ 8 0
8 LEDA 50435 Sy2 14 08 13.5924907968 +48 51 44.632985832   16.5       ~ 54 0
9 LEDA 84121 EmG 14 09 52.045 +48 26 38.87   17       ~ 22 0
10 CASG 370 H2G 14 10 33.3 +48 38 06   17.03 16.67     ~ 6 0
11 LEDA 84136 AGN 14 15 39.9399949800 +50 42 51.075374400   17.45 16.04     ~ 20 0
12 2MASX J14303120+5242258 Sy2 14 30 31.1818443768 +52 42 25.834019796   17.92 16.96     ~ 73 0
13 NAME CG 1432+53 SBG 14 34 24.18776 +52 49 12.9084   17.29 16.92     ~ 19 0
14 2MASX J14462501+4349563 SBG 14 46 25.0159391568 +43 49 56.713913364   15.52 15.28     ~ 26 0
15 2MASX J14481378+4444413 H2G 14 48 13.7981399400 +44 44 40.679544156   16.63 16.14     ~ 14 0
16 NAME Bootes Void vid 14 52 +45.8           ~ 91 0
17 NAME CG 1457+42 AGN 14 59 20.5652224656 +42 16 10.351225236   16.51 15.94     ~ 27 0
18 2MASX J15000329+4932545 Sy2 15 00 03.3240474216 +49 32 54.688195752   16 16.7     ~ 17 0
19 CASG 620 G 15 04 47.3 +54 16 48   19.39 18.37     ~ 3 0
20 2MASX J15065827+3946491 H2G 15 06 58.2291985968 +39 46 49.668246588   16.77 15.98     ~ 12 0
21 Z 274-18 Sy1 15 07 45.0042214200 +51 27 10.265406048   17.52 16.93     ~ 98 0
22 LEDA 87386 SBG 15 09 09.036 +45 43 08.84   18.69 17.77     ~ 20 0
23 NVSS J151212+471642 rG 15 12 12.85281 +47 16 30.7361   16.98 16.46     ~ 30 0
24 LEDA 100709 G 15 18 55.7 +39 38 32   17.62 16.99     ~ 10 1
25 NAME CG 1517+39 rG 15 19 47.088 +39 45 36.65   16.75 16.12     ~ 40 1
26 MCG+09-25-043 PaG 15 21 07.368 +50 40 19.41   15.5       ~ 33 1
27 MCG+09-25-044 Sy1 15 21 08.9231619936 +50 40 07.039384176   18.48 18.00     ~ 30 1
28 [WHL95] 1530+4332 G 15 32 +43.3           ~ 4 0
29 FIRST J153739.9+382122 rG 15 37 39.9136940496 +38 21 22.009583088   17.25 16.05     ~ 12 0
30 NVSS J153830+530545 rG 15 38 30.1838409912 +53 05 44.479081140   17.52 16.52     ~ 16 0
31 NVSS J154207+500415 rG 15 42 07.5253089480 +50 04 10.883747820   15.61       ~ 13 0
32 NVSS J154922+511201 rG 15 49 22.3154172840 +51 11 56.434590672   16.40       ~ 14 0
33 HD 191978 Pu* 20 10 58.2799378920 +41 21 09.926824572 7.38 8.15 8.03     O8Vz 77 0
34 HD 240296 * 23 25 06.3295985064 +58 25 05.354292288   9.81 9.39     A6III 12 0

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