2016MNRAS.462.3955P

Query : 2016MNRAS.462.3955P

2016MNRAS.462.3955P - Mon. Not. R. Astron. Soc., 462, 3955-3978 (2016/November-2)

SDSS-IV MaNGA: faint quenched galaxies - I. Sample selection and evidence for environmental quenching.

PENNY S.J., MASTERS K.L., WEIJMANS A.-M., WESTFALL K.B., BERSHADY M.A., BUNDY K., DRORY N., FALCON-BARROSO J., LAW D., NICHOL R.C., THOMAS D., BIZYAEV D., BROWNSTEIN J.R., FREISCHLAD G., GAULME P., GRABOWSKI K., KINEMUCHI K., MALANUSHENKO E., MALANUSHENKO V., ORAVETZ D., ROMAN-LOPES A., PAN K., SIMMONS A. and WAKE D.A.

Abstract (from CDS):

Using kinematic maps from the Sloan Digital Sky Survey (SDSS) Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, we reveal that the majority of low-mass quenched galaxies exhibit coherent rotation in their stellar kinematics. Our sample includes all 39 quenched low-mass galaxies observed in the first year of MaNGA. The galaxies are selected with Mr > -19.1, stellar masses 109 M☉ < M* < 5 x 109 M☉, EWHα < 2 Å, and all have red colours (u - r) > 1.9. They lie on the size-magnitude and σ-luminosity relations for previously studied dwarf galaxies. Just six (15 ± 5.7 per cent) are found to have rotation speeds v_e, rot_ < 15 km s–1 at ∼1 Re, and may be dominated by pressure support at all radii. Two galaxies in our sample have kinematically distinct cores in their stellar component, likely the result of accretion. Six contain ionized gas despite not hosting ongoing star formation, and this gas is typically kinematically misaligned from their stellar component. This is the first large-scale Integral Field Unit (IFU) study of low-mass galaxies selected without bias against low-density environments. Nevertheless, we find the majority of these galaxies are within ∼1.5 Mpc of a bright neighbour (MK < -23; or M* > 5 x 1010 M☉), supporting the hypothesis that galaxy-galaxy or galaxy-group interactions quench star formation in low-mass galaxies. The local bright galaxy density for our sample is ρproj = 8.2 ± 2.0 Mpc–2, compared to ρproj = 2.1 ± 0.4 Mpc–2 for a star-forming comparison sample, confirming that the quenched low-mass galaxies are preferentially found in higher density environments.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: dwarf - galaxies: evolution - galaxies: kinematics and dynamics - galaxies: kinematics and dynamics

Simbad objects: 80

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Number of rows : 80
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 Z 435-39 AGN 01 06 25.6849868928 +14 34 16.785786576   15.4       ~ 23 0
2 SDSS J031904.23+005614.9 G 03 19 04.2398294592 +00 56 14.974367244           ~ 10 0
3 LEDA 1180913 AGN 03 19 10.2520236960 +00 58 52.532021208           ~ 11 0
4 LEDA 1152488 Sy2 03 19 45.6380919960 -00 04 37.924029048   16.36   14.94   ~ 36 0
5 SDSS J032047.94+001108.1 LIN 03 20 47.9465317344 +00 11 08.129081220           ~ 9 0
6 LEDA 1141584 G 03 25 44.5621482024 -00 30 30.783438792           ~ 12 0
7 SDSS J032626.26-001842.0 G 03 26 26.2658322120 -00 18 42.086995740           ~ 11 0
8 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
9 LEDA 2185414 G 07 46 18.2702158920 +41 42 06.015884184           ~ 14 0
10 SDSS J074655.00+412641.6 G 07 46 55.0069221384 +41 26 41.637713604           ~ 12 0
11 Z 206-25 rG 07 47 02.0561182344 +41 32 10.435938072   14.8       ~ 30 0
12 SDSS J090627.82+413809.2 G 09 06 27.8220398112 +41 38 09.219504948           ~ 10 0
13 Z 209-27 Bla 09 06 52.7960243666 +41 24 29.642843168   15.1       ~ 67 1
14 Z 239-18 GiG 09 39 34.6367592792 +48 25 18.470997732   15.1       ~ 35 1
15 SDSS J094305.74+482510.8 G 09 43 05.7519234552 +48 25 10.888584492           ~ 10 0
16 NAME ACO 901-902 Supercluster SCG 09 56 -10.0           ~ 127 1
17 Z 212-8 G 10 26 51.8234847240 +41 53 18.908433204   15.4       ~ 34 0
18 LEDA 2195681 G 10 31 22.9972087776 +42 16 37.815893004           ~ 20 0
19 LEDA 2172061 GiC 10 57 53.0407582200 +40 51 43.738399584           ~ 15 0
20 Z 213-11 LIN 10 57 59.3136645720 +40 49 40.660802940   15.6       ~ 33 0
21 SDSS J105830.52+405231.8 G 10 58 30.5286080016 +40 52 31.828220148           ~ 11 0
22 Z 241-57 GiG 11 00 09.6329816568 +45 55 01.324358292   14.5       ~ 38 0
23 2MASS J11001963+4553241 AG? 11 00 19.6472071488 +45 53 24.152914176           ~ 13 0
24 LEDA 2199191 G 11 00 20.0589482400 +42 27 08.610310152           ~ 5 0
25 SDSS J110041.69+423118.5 G 11 00 41.7035350344 +42 31 18.485279832           ~ 10 0
26 LEDA 2206010 G 11 06 10.2373375848 +42 46 47.224514820           ~ 4 0
27 SDSS J110707.52+424931.7 G 11 07 07.5263952144 +42 49 31.755478512           ~ 13 0
28 Z 244-11 G 12 24 28.478 +46 01 07.25   15.0       ~ 17 0
29 SDSS J122459.18+455810.0 G 12 24 59.1918466200 +45 58 10.047483300           ~ 10 0
30 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
31 NGC 4515 GiG 12 33 04.9652329656 +16 15 55.889535096   13.3       ~ 157 0
32 NGC 4821 GiG 12 56 29.1259535040 +26 57 25.188745176   15.0       ~ 51 0
33 2MASX J12563598+2654168 GiC 12 56 36.032 +26 54 17.18   17.86   16.44   ~ 20 0
34 IC 4317 GiC 13 41 45.8283954480 +27 06 22.909867884   15.72       ~ 34 0
35 SDSS J134209.59+273413.3 G 13 42 09.6064411824 +27 34 13.298943360           ~ 14 0
36 SDSS J134252.13+220736.9 G 13 42 52.1352891240 +22 07 36.995321244           ~ 10 0
37 Z 131-29 LIN 13 42 54.6923667768 +22 08 42.660962880   14.9       ~ 32 0
38 SDSS J141055.17+460342.5 G 14 10 55.1804194848 +46 03 42.589943568           ~ 8 0
39 LEDA 2277767 G 14 11 55.4011518240 +46 14 16.963242756           ~ 6 0
40 LEDA 99806 Sy2 14 17 41.3082370632 +45 27 57.020694984           ~ 30 0
41 LEDA 99808 G 14 18 55.0570775352 +45 21 23.998392324           ~ 17 0
42 LEDA 3087933 AG? 14 32 40.2335133720 +40 57 15.095748456           ~ 15 0
43 Z 220-32 LIN 14 34 52.7783470992 +40 44 52.853760636   14.9       ~ 29 0
44 SDSS J151555.85+435322.5 G 15 15 55.8600749640 +43 53 22.492717080           ~ 12 0
45 LEDA 2225842 G 15 22 05.478 +43 39 02.68           ~ 4 0
46 LEDA 2210115 EmG 15 27 57.8697555984 +42 58 16.335295968           ~ 23 0
47 NGC 5934 LIN 15 28 12.7256314392 +42 55 47.533609668   14.5       ~ 69 0
48 LEDA 2319357 G 15 41 52.6075792440 +48 31 18.861198168           ~ 6 0
49 SDSS J154219.13+482756.5 G 15 42 19.1425354584 +48 27 56.586304188           ~ 13 0
50 SDSS J154302.17+383937.7 G 15 43 02.1803290824 +38 39 37.749795876           ~ 11 0
51 LEDA 2316168 G 15 43 05.9757905688 +48 22 43.690257084           ~ 12 0
52 LEDA 3567111 G 15 43 23.6755721784 +38 59 23.046267156           ~ 3 0
53 LEDA 2302383 AG? 15 55 31.519 +47 40 38.44           ~ 11 0
54 LEDA 2308974 AG? 15 55 33.9075134160 +48 01 20.567824716           ~ 13 0
55 Z 250-21 LIN 15 55 43.2631347161 +47 52 02.128636072   14.1       ~ 81 1
56 Z 250-23 GiG 15 56 07.7076212184 +48 05 35.519766468   14.9       ~ 24 0
57 LEDA 3087518 G 16 04 03.7111766520 +47 45 17.013588660           ~ 9 0
58 SDSS J160908.14+473809.9 EmG 16 09 08.1476025840 +47 38 09.941511696           ~ 11 0
59 MCG+07-34-072 EmG 16 28 46.2206869488 +39 39 21.208406652   15.11       ~ 28 0
60 MCG+07-34-074 GiC 16 28 49.3981663464 +39 36 56.722135032   16       ~ 29 0
61 2MASX J16293306+3954108 GiC 16 29 33.0795880272 +39 54 10.643227560           ~ 17 0
62 LEDA 2159305 GiC 16 29 43.7050789632 +40 00 59.408879760           ~ 19 0
63 LEDA 140638 GiC 16 31 19.2794488896 +39 44 38.819676192           ~ 25 0
64 LEDA 2154138 G 16 31 24.9477883080 +39 41 34.561834332           ~ 15 0
65 SDSS J165352.93+394946.6 G 16 53 52.9352961456 +39 49 46.712555508           ~ 16 0
66 LEDA 3129592 GiC 16 53 56.3256633024 +39 48 45.428154192           ~ 14 0
67 LEDA 3389295 G 17 03 28.763 +36 26 12.07           ~ 11 0
68 Z 197-27 G 17 03 30.5699270832 +36 25 07.136714316   14.5       ~ 15 0
69 LEDA 2079995 G 17 03 34.8635262624 +36 24 05.565301092           ~ 15 0
70 LEDA 2566305 G 17 14 07.2448903416 +57 28 38.704702044           ~ 16 0
71 NGC 6338 Bla 17 15 22.9842192344 +57 24 40.346559927   14.2   8   ~ 205 2
72 LEDA 2550537 G 17 24 19.6290643632 +56 52 34.622526504           ~ 15 0
73 Z 277-42 G 17 24 30.8187093408 +56 54 34.937836884   15.5       ~ 23 0
74 LEDA 1392368 AG? 21 09 43.224 +11 21 18.95           ~ 13 0
75 LEDA 3502655 AG? 21 10 00.5219706528 +11 30 38.314918332           ~ 19 0
76 Z 426-14 GiG 21 11 52.017 +11 16 34.00   15.2       ~ 38 0
77 Z 426-15 GiG 21 12 01.2951932208 +11 29 44.271638052   15.5       ~ 30 0
78 LEDA 1414042 G 22 03 25.2865195680 +12 40 33.198467916           ~ 17 0
79 NGC 7195 LIN 22 03 30.2841068472 +12 39 39.001555152   15.6       ~ 25 0
80 NAME Local Group GrG ~ ~           ~ 9325 0

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