2014MNRAS.442..533M

Query : 2014MNRAS.442..533M

2014MNRAS.442..533M - Mon. Not. R. Astron. Soc., 442, 533-557 (2014/July-3)

A new population of recently quenched elliptical galaxies in the SDSS.

McINTOSH D.H., WAGNER C., COOPER A., BELL E.F., KERES D., VAN DEN BOSCH F.C., GALLAZZI A., HAINES T., MANN J., PASQUALI A. and CHRISTIAN A.M.

Abstract (from CDS):

We use the Sloan Digital Sky Survey to investigate the properties of massive elliptical galaxies in the local Universe (z ≤ 0.08) that have unusually blue optical colours. Through careful inspection, we distinguish elliptical from non-elliptical morphologies among a large sample of similarly blue galaxies with high central light concentrations (cr ≥ 2.6). These blue ellipticals comprise 3.7 per cent of all cr ≥ 2.6 galaxies with stellar masses between 1010 and 1011h-2M☉. Using published fibre spectrum diagnostics, we identify a unique subset of 172 non-star-forming ellipticals with distinctly blue urz colours and young (<3Gyr) light-weighted stellar ages. These recently quenched ellipticals (RQEs) have a number density of 2.7-4.7x10^- 5^h3Mpc- 3 and sufficient numbers above 2.5x1010h-2M☉ to account for more than half of the expected quiescent growth at late cosmic time assuming that this phase lasts 0.5Gyr. RQEs have properties that are consistent with a recent merger origin (i.e. they are strong `first-generation' elliptical candidates), yet few involved a starburst strong enough to produce an E+A signature. The preferred environment of RQEs (90 per cent reside at the centres of <3x1012h-1M☉ groups) agrees well with the `small group scale' predicted for maximally efficient spiral merging on to their halo centre and rules out satellite-specific quenching processes. The high incidence of Seyfert and LINER activity in RQEs and their plausible descendants may heat the atmospheres of small host haloes sufficiently to maintain quenching.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: formation - galaxies: star formation

VizieR on-line data: <Available at CDS (J/MNRAS/442/533): table3.dat>

Simbad objects: 172

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Number of rows : 172
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 LEDA 984600 G 00 28 36.3430739040 -09 55 51.985451172           ~ 4 0
2 SDSS J003024.70+000920.3 G 00 30 24.7087278192 +00 09 20.369354796           ~ 2 0
3 LEDA 992581 GiC 00 39 04.5763585728 -09 18 54.514639512     17.59     ~ 7 0
4 2MASX J00471794+1532314 Sy2 00 47 17.9568706992 +15 32 32.121054672   19.13 18.50     ~ 7 0
5 LEDA 1498711 G 00 48 03.1086915528 +16 00 57.964055148           ~ 5 0
6 SDSS J005315.46+145139.8 G 00 53 15.4644640968 +14 51 39.838928976           ~ 4 0
7 LEDA 999619 G 00 57 27.7162040424 -08 45 18.756027900           ~ 3 0
8 SDSS J010043.75-085750.3 G 01 00 43.7557571400 -08 57 50.389523568           ~ 1 0
9 LEDA 1473189 G 01 08 32.0704134000 +15 01 22.980844092           ~ 9 0
10 Mrk 986 Sy2 01 22 09.2249275704 -09 53 18.784813848   15.5       ~ 26 0
11 CAIRNS J012938.42-003045.3 GiC 01 29 38.4167406504 -00 30 45.259366536           ~ 5 0
12 SDSS J020745.44+133751.3 G 02 07 45.4533421032 +13 37 51.349279656           ~ 4 0
13 SDSS J021826.61+003303.2 G 02 18 26.6204506056 +00 33 03.300740784           ~ 3 0
14 SDSS J030048.51+010238.1 G 03 00 48.5130789840 +01 02 38.094654948           ~ 4 0
15 Z 390-1 QSO 03 07 32.3022523944 -00 57 52.268638752   14.7       ~ 39 0
16 SDSS J074020.71+330353.1 G 07 40 20.7092760288 +33 03 53.195253948           ~ 1 0
17 SDSS J074615.83+312341.0 G 07 46 15.8317830264 +31 23 41.014751316           ~ 2 0
18 SDSS J074648.82+353526.9 G 07 46 48.8316983256 +35 35 26.856781908           ~ 2 0
19 SDSS J080004.64+400440.5 EmG 08 00 04.6482760152 +40 04 40.533099636           ~ 2 0
20 LEDA 1712404 G 08 01 00.2806087224 +24 38 23.486698356           ~ 8 0
21 2MASX J08021836+3232078 Sy2 08 02 18.3904878840 +32 32 07.803216492           ~ 17 0
22 SDSS J082443.71+080614.9 G 08 24 43.7185549896 +08 06 14.921206056           ~ 3 0
23 SDSS J082445.85+073820.1 G 08 24 45.8568229320 +07 38 20.181781932           ~ 3 0
24 Z 237-5 G 08 29 57.4485580056 +44 56 24.586899900   15.4       ~ 27 0
25 LEDA 1839833 G 08 30 50.2272256728 +28 34 36.588683892           ~ 13 0
26 FIRST J083336.4+034428 rG 08 33 36.4156454424 +03 44 29.450570712           ~ 5 0
27 LEDA 2216504 G 08 34 27.7800509376 +43 15 19.741890600           ~ 7 0
28 SDSS J083444.27+354140.3 G 08 34 44.2747037088 +35 41 40.364844072           ~ 4 0
29 SDSS J083742.96+082142.3 G 08 37 42.9640247304 +08 21 42.438335940           ~ 4 0
30 Z 32-45 G 08 38 43.5284144424 +07 48 23.797431540   14.8       ~ 22 0
31 SDSS J085141.40+483421.0 G 08 51 41.4071189832 +48 34 21.006549408           ~ 5 0
32 2MASX J09011023+4905366 LIN 09 01 10.2388913424 +49 05 36.856200876           ~ 2 0
33 SDSS J090244.88+063128.4 G 09 02 44.8855153848 +06 31 28.466997276           ~ 1 0
34 SDSS J090531.61+522223.7 Sy2 09 05 31.6100775192 +52 22 23.720941776   18.46 17.88     ~ 5 0
35 LEDA 2300446 G 09 17 55.8164273184 +47 33 53.150520132           ~ 7 0
36 SDSS J091845.95+071135.6 G 09 18 45.9534697272 +07 11 35.592997128           ~ 1 0
37 SDSS J092344.36+531043.1 G 09 23 44.3754814848 +53 10 43.145342724           ~ 1 0
38 2MASX J09235527+4930159 LIN 09 23 55.3363097232 +49 30 16.004497572           ~ 3 0
39 SDSS J093136.34+080003.2 G 09 31 36.3480054240 +08 00 03.285140760           ~ 3 0
40 LEDA 3091255 G 09 32 03.7596655872 +10 22 40.016730936           ~ 8 0
41 Z 181-56 GiG 09 33 34.3299950040 +33 38 54.997249632   15.3       ~ 21 0
42 SDSS J094233.37+420704.8 G 09 42 33.3787413096 +42 07 04.878839568           ~ 2 0
43 LEDA 2142604 G 09 48 35.6113734120 +39 03 42.625376568           ~ 10 0
44 LEDA 2296908 EmG 09 50 23.7211693272 +47 21 54.849676860           ~ 5 0
45 LEDA 1183606 G 09 56 46.5426366696 +01 04 12.667434240   17.023   15.849   ~ 7 0
46 SDSS J095833.35+065151.0 G 09 58 33.3561866256 +06 51 51.001876584           ~ 2 0
47 SDSS J095934.37+111526.6 G 09 59 34.3750454568 +11 15 26.730460980           ~ 4 0
48 LEDA 1328785 G 10 00 43.1509364544 +07 42 26.925771852           ~ 5 0
49 LEDA 2306182 G 10 02 09.4420157904 +47 52 58.278909468           ~ 4 0
50 LEDA 2515645 G 10 07 43.6164314352 +55 49 34.451744916           ~ 12 0
51 SDSS J101731.53+465907.0 G 10 17 31.5433335264 +46 59 07.068548724           ~ 4 0
52 LEDA 30195 G 10 19 52.8971971320 +61 41 07.614107484   17.8       ~ 6 0
53 LEDA 3091724 G 10 23 31.2514170216 +07 20 36.258290808           ~ 9 0
54 SDSS J102852.33+070401.4 G 10 28 52.3363370856 +07 04 01.523849268           ~ 2 0
55 SDSS J103405.21+032002.5 G 10 34 05.2175984424 +03 20 02.607542448           ~ 2 0
56 SDSS J103428.73+044707.4 G 10 34 28.7397231000 +04 47 07.413850644           ~ 3 0
57 SDSS J103439.14+033534.2 G 10 34 39.1400288232 +03 35 34.247367168           ~ 8 0
58 LEDA 2208364 G 10 37 06.8240464752 +42 53 34.224441900           ~ 2 0
59 SDSS J104232.33-004158.3 G 10 42 32.3319078792 -00 41 58.319238300   17.526   16.314   ~ 5 0
60 Z 212-52 G 10 46 33.1600929120 +39 58 58.398564900   15.7       ~ 11 0
61 LEDA 1142321 G 10 48 51.4571824272 -00 28 44.635502748   17.142   15.854   ~ 5 0
62 2MASS J10530028+5614587 AGN 10 53 00.2917507080 +56 14 58.863243228           ~ 3 0
63 LEDA 3091601 G 10 58 02.1702840864 +08 09 42.206847732           ~ 7 0
64 2MASX J11061837+4935381 Sy2 11 06 18.3195003768 +49 35 38.813317152           ~ 7 0
65 LEDA 2277429 G 11 08 08.2117460160 +46 13 06.512260404           ~ 4 0
66 SDSS J110914.93+071720.1 G 11 09 14.9340604536 +07 17 20.154973308           ~ 2 0
67 LEDA 2491013 G 11 11 16.8188362368 +55 06 49.355116452           ~ 4 0
68 SDSS J111121.90+471953.5 LIN 11 11 21.9019668192 +47 19 53.607084564           ~ 5 0
69 SDSS J111306.70+672804.1 G 11 13 06.6995683392 +67 28 04.118484684           ~ 4 0
70 LEDA 34715 EmG 11 20 31.6241689776 +60 08 42.486813672   16.4       ~ 9 0
71 LEDA 2464226 G 11 26 59.0432258184 +54 15 19.039772988           ~ 3 0
72 SDSS J112811.07+425603.1 G 11 28 11.0654735712 +42 56 03.140382624           ~ 3 0
73 LEDA 1330259 G 11 28 37.0338314856 +07 45 55.107316440           ~ 2 0
74 LEDA 3544539 LIN 11 36 36.1217525424 +11 49 17.062793904           ~ 7 0
75 LEDA 2222864 G 11 41 20.0004100920 +43 31 36.488792712           ~ 4 0
76 LEDA 2318226 G 11 41 31.2646357128 +48 28 16.027005684           ~ 4 0
77 LEDA 2272895 EmG 11 42 12.5241928152 +45 56 44.634284376           ~ 4 0
78 SDSS J114612.44+090017.3 G 11 46 12.4457703936 +09 00 17.375881680           ~ 1 0
79 SDSS J115004.34+413932.3 G 11 50 04.3428173904 +41 39 32.272713828           ~ 3 0
80 2MASX J11530653+6417567 Sy2 11 53 06.4565710176 +64 17 56.548398804           ~ 11 0
81 SDSS J115352.07+432820.2 G 11 53 52.0746360096 +43 28 20.311519836           ~ 1 0
82 SDSS J115618.80+035927.1 G 11 56 18.8077951920 +03 59 27.102106068           ~ 4 1
83 LEDA 2330344 G 11 58 59.7465484440 +48 58 46.342930584           ~ 6 0
84 SDSS J120048.16+044235.7 G 12 00 48.1602825384 +04 42 35.749752912           ~ 1 0
85 2MASX J12031334+4139218 LIN 12 03 13.3831952472 +41 39 22.348921320           ~ 4 0
86 LEDA 1146387 G 12 05 49.0136831832 -00 18 54.487698768   17.033   15.809   ~ 9 0
87 Z 41-46 LIN 12 11 10.8311247672 +02 15 19.931202468   15.30       ~ 34 0
88 SDSS J121229.15+121106.6 G 12 12 29.1484884096 +12 11 06.677832732           ~ 1 0
89 LEDA 1432963 G 12 14 15.3646380840 +13 30 55.849388580           ~ 4 0
90 SDSS J121741.30+040627.1 EmG 12 17 41.3011717944 +04 06 27.144829476           ~ 4 0
91 Z 244-2 G 12 18 44.3352490872 +44 46 52.218218712   15.4       ~ 26 0
92 LEDA 3401660 LIN 12 18 52.6259409720 +52 01 01.299090936           ~ 6 0
93 LEDA 165080 EmG 12 19 58.2217372656 +11 56 20.818207320           ~ 6 0
94 LEDA 116525 G 12 21 25.1967815136 -03 34 11.347221900   17.434   16.044   ~ 2 0
95 Z 315-34 Sy2 12 22 49.1388108264 +66 51 45.315145872   15.4       ~ 22 0
96 LEDA 2623683 G 12 29 08.8686612432 +61 44 17.671460316           ~ 3 0
97 LEDA 3550424 G 12 30 34.9779611736 +42 11 30.125531004           ~ 6 0
98 Mrk 779 G 12 39 36.0437604432 +12 26 20.021340408   16.5       ~ 35 0
99 SDSS J124225.10+451718.2 G 12 42 25.1042589792 +45 17 18.280953024           ~ 1 0
100 LEDA 2321897 G 12 45 00.3085374576 +48 37 43.961728440           ~ 7 0
101 SDSS J125918.94+453130.8 G 12 59 18.9499719912 +45 31 30.853604028           ~ 1 0
102 Z 43-103 GiG 13 01 56.1524411856 +05 04 29.636192028   15.5       ~ 15 0
103 2MASX J13024912+0253346 Sy2 13 02 49.1206314096 +02 53 34.651241592   18.03 17.43     ~ 6 0
104 SDSS J130745.13+133216.9 G 13 07 45.1363551864 +13 32 16.986474204           ~ 2 0
105 LEDA 1475926 LIN 13 10 41.3108220072 +15 07 30.543313476           ~ 7 0
106 LEDA 2705991 G 13 19 57.6613812432 +67 47 08.317499640           ~ 2 0
107 LEDA 2259645 G 13 21 45.5182136664 +45 08 25.742435496           ~ 3 0
108 LEDA 2517191 G 13 23 01.3012519344 +55 51 59.967888012           ~ 5 0
109 2MASX J13244600+4946031 LIN 13 24 46.0263890928 +49 46 03.091207476           ~ 6 0
110 2MASX J13261669+5840599 LIN 13 26 16.7655257448 +58 40 59.846771748           ~ 13 0
111 LEDA 2172600 G 13 30 38.1135269688 +40 53 55.444978644           ~ 17 0
112 LEDA 1411962 G 13 31 01.1089784424 +12 34 17.739937200           ~ 9 0
113 LEDA 3088029 G 13 37 09.3488643000 +39 52 24.515852808           ~ 6 0
114 SDSS J134310.56+023433.1 G 13 43 10.5608601720 +02 34 33.181502268           ~ 2 0
115 LEDA 2585494 G 13 47 51.1199635704 +59 01 06.578724792           ~ 3 0
116 SDSS J134907.39+050322.9 G 13 49 07.3947424656 +05 03 23.082436512           ~ 2 0
117 SDSS J135516.82+603553.1 G 13 55 16.8234234360 +60 35 53.134184580           ~ 3 0
118 2dFGRS TGN338Z054 Sy2 13 57 46.7929715424 -00 21 52.922571084   18.84 18.26 16.824   ~ 6 0
119 SDSS J135932.63+543809.8 G 13 59 32.6354698704 +54 38 09.814485120           ~ 1 0
120 LEDA 2583485 G 14 00 42.8816707752 +58 50 49.980280236           ~ 2 0
121 LEDA 1280248 G 14 00 59.6225480952 +05 14 17.226311964           ~ 3 0
122 2MASS J14012113+1432243 * 14 01 21.1407004824 +14 32 24.338602752           ~ 5 0
123 LEDA 118862 G 14 04 43.6006039656 -02 53 04.799592492   18.143   16.934   ~ 3 0
124 LEDA 1211944 EmG 14 06 30.7487111808 +01 58 28.779336552           ~ 7 0
125 LEDA 2162483 G 14 08 15.5590290696 +40 13 02.285710212           ~ 5 0
126 LEDA 50731 G 14 12 29.3377598784 +64 22 36.445162620           ~ 12 0
127 2MASX J14204687+6159594 Sy2 14 20 46.8683763288 +61 59 59.707456440           ~ 4 0
128 LEDA 2197805 G 14 22 10.6600268712 +42 23 02.100645096           ~ 2 0
129 ZW VIII 419 Sy1 14 26 12.9811219560 +00 51 38.120656104   17.03 16.60     ~ 23 0
130 2MASX J14262756+0136417 Sy2 14 26 27.5502525504 +01 36 41.668688484   18.29 17.73 16.689   ~ 10 0
131 LEDA 1091841 G 14 30 12.7736633640 -02 26 39.516410220   18.209   17.005   ~ 5 0
132 2MASX J14402623+0115301 LIN 14 40 26.2513318848 +01 15 30.217973904           ~ 11 0
133 LEDA 2401223 G 14 40 49.8557047704 +51 50 44.304858384           ~ 6 0
134 SDSS J144857.79-022307.0 G 14 48 57.7953043752 -02 23 06.975022632   18.552   17.280   ~ 6 0
135 LEDA 2816130 G 14 57 46.4605043736 +59 20 32.687750364           ~ 19 0
136 SDSS J150501.87+371808.2 G 15 05 01.8757943808 +37 18 08.277148404           ~ 2 0
137 LEDA 3563478 LIN 15 06 24.2213048064 +32 25 50.954758032           ~ 10 0
138 LEDA 2342534 G 15 06 37.3054414008 +49 25 23.679660792           ~ 4 0
139 LEDA 120602 G 15 13 46.0323559308 -02 41 34.393277728           ~ 2 0
140 LEDA 54808 G 15 21 36.4018630440 +02 48 17.665074864   16.5       ~ 6 0
141 LEDA 2569019 G 15 24 13.1147332080 +57 37 39.526236732           ~ 8 0
142 LEDA 2062976 G 15 27 49.9149267000 +35 20 10.051414980           ~ 4 0
143 NPM1G +39.0380 G 15 33 44.4514235496 +39 13 41.940904224           ~ 17 0
144 LEDA 2185053 G 15 36 00.5055135240 +41 40 51.135633120           ~ 2 0
145 2MASX J15420979+3606424 Sy2 15 42 09.7980216288 +36 06 42.859513512           ~ 5 0
146 SDSS J155212.18+524854.3 G 15 52 12.1963631208 +52 48 54.326934360           ~ 3 0
147 LEDA 2019066 G 15 58 25.3745870928 +32 58 07.725326952           ~ 10 0
148 LEDA 1942274 EmG 16 03 07.2997928040 +31 19 58.663832340           ~ 7 0
149 SDSS J160430.56+271414.0 G 16 04 30.5710370016 +27 14 13.974007056           ~ 4 0
150 SDSS J161026.30-003754.1 LIN 16 10 26.2999385736 -00 37 54.201403596           ~ 2 0
151 2MASX J16270254+4328340 Sy2 16 27 02.5557944232 +43 28 33.950210916           ~ 47 0
152 2MASS J16294185+2630469 AGN 16 29 41.8544949384 +26 30 47.027510568           ~ 5 0
153 SDSS J163406.26+473904.2 G 16 34 06.2592827640 +47 39 04.300647048           ~ 2 0
154 SDSS J163508.67+445721.5 G 16 35 08.6758109856 +44 57 21.485886696           ~ 3 0
155 2MASX J16371816+3650484 LIN 16 37 18.1659335520 +36 50 48.624564732           ~ 3 0
156 2MASS J16403273+4221477 AGN 16 40 32.7483081528 +42 21 47.738300148           ~ 6 0
157 SDSS J165120.70+405226.3 G 16 51 20.7000835032 +40 52 26.399116704           ~ 2 0
158 SDSS J170049.69+202900.3 G 17 00 49.6891922400 +20 29 00.404785032           ~ 1 0
159 LEDA 3088819 G 17 01 32.5658533272 +33 03 08.047999476           ~ 13 0
160 LEDA 1650005 G 17 05 09.7890030240 +21 26 16.866031092           ~ 8 0
161 LEDA 2597455 G 17 15 08.6219378616 +60 03 19.194581772           ~ 4 0
162 LEDA 2568928 G 17 15 43.6178085096 +57 37 20.632797696           ~ 9 0
163 SDSS J172226.71+281834.9 G 17 22 26.7111434400 +28 18 34.918022880           ~ 15 0
164 SDSS J210506.99+002324.4 G 21 05 06.9940065600 +00 23 24.453972024           ~ 1 0
165 LEDA 1145786 G 21 06 35.7586114008 -00 20 23.781403896   17.20   15.84   ~ 10 0
166 LEDA 1129926 G 21 14 52.4013904944 -00 58 39.936915912   16.00   14.68   ~ 23 0
167 LEDA 1376008 G 21 29 06.7552331640 +10 11 45.314387196           ~ 5 0
168 LEDA 1125870 G 21 54 39.8133384912 -01 08 14.077189644           ~ 4 0
169 2MASX J22113969-0846009 Sy2 22 11 39.6776921616 -08 46 01.056215784           ~ 5 0
170 LEDA 1417476 G 22 14 38.2699033920 +12 51 09.827291340           ~ 2 0
171 LEDA 1141968 G 22 48 50.6502180456 -00 29 38.615626644           ~ 5 0
172 2MASX J23280599+1446255 Sy2 23 28 06.0606888384 +14 46 25.178759832           ~ 6 0

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