2021MNRAS.508.3084S

Query : 2021MNRAS.508.3084S

2021MNRAS.508.3084S - Mon. Not. R. Astron. Soc., 508, 3084-3103 (2021/December-1)

The infrared excess emission from nearby Gaia DR2 M dwarfs.

SGRO L.A. and SONG I.

Abstract (from CDS):

We use Gaia DR2 data to search for M dwarfs with infrared (IR) excess, within 100 pc. By cross-matching Gaia with AllWISE and 2MASS catalogues, we select a subset of K/M dwarfs with reliable photometric data in both the optical and near-to-mid IR. Using our SED fitting pipeline, we determine a photospheric model for each star and determine its significance of excess (SOE) inWISE passbands W3 and W4, which is used to classify potential IR excess. Through exhaustive vetting procedures, we present 37 new late-type IR-excess candidates, most of them M dwarfs, along with analyses of 12 previously known IR-excess stars. We group our candidates into two categories based on their SOE and likelihood of contamination. We also perform an isochronal age analysis as well as a moving group membership analysis, and discover six potential moving group members belonging to β Pictoris, Argus, Carina, Columba, and Tucana/Horologium Moving Groups. We conclude with a discussion of the nature of IR excess around late-type stars.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): catalogues - stars: late-type - infrared: stars - circumstellar matter

Simbad objects: 90

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Number of rows : 90
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 NAME THA MGr 00 00 -62.0           ~ 540 0
2 BD+40 45 PM* 00 17 06.3740983357 +40 56 53.870823378   10.36   8.2   K7V 138 0
3 1RXS J002012.0-341630 PM* 00 20 11.0888074608 -34 16 17.976113436   13.20 12.04 11.65 10.599 K5e 6 0
4 Gaia DR3 5002950568362123008 PM* 00 56 26.4745390621 -35 20 35.557534193           ~ 2 0
5 2MASS J01094458+0427528 * 01 09 44.5841227824 +04 27 52.932414780           ~ 3 0
6 BD+20 307 SB* 01 54 50.3440413288 +21 18 22.461011784   9.57 9.01     G0 113 0
7 Gaia DR3 4936999799344230400 * 02 14 23.6487859341 -50 11 37.601522480           ~ 2 0
8 Gaia DR3 5120160359013707520 * 02 25 47.3202818505 -23 32 55.971308921           ~ 1 0
9 Gaia DR3 21174364863552000 * 02 52 59.7486773288 +09 44 12.146301261           ~ 1 0
10 Gaia DR3 4781113067982912000 * 04 24 09.1541928836 -51 40 23.257571243           ~ 2 0
11 2MASS J04242429-6904152 pA? 04 24 24.3151460880 -69 04 15.409541064           ~ 2 0
12 V* GG Tau Or* 04 32 30.3506925552 +17 31 40.494063144 14.84 14.78 13.40 11.54   M0e+M2.0e 793 1
13 UCAC2 36944937 LM* 04 48 00.8561774784 +14 39 58.109282316   17.65 16.65 14.80   dM6 17 0
14 UCAC4 607-015932 PM* 04 59 16.1127985080 +31 14 47.130920704           ~ 2 0
15 V* V1005 Ori BY* 04 59 34.8342878424 +01 47 00.669818328   11.48 10.107 9.603 8.239 M0Ve 371 0
16 Gaia DR3 3290126127637212672 * 05 06 31.7684156594 +08 25 33.120752835           ~ 3 0
17 Gaia DR3 4824320438981225856 * 05 06 55.4600673156 -35 15 28.135323796           ~ 1 0
18 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
19 V* VZ Col BY? 05 30 14.0042313744 -42 41 50.379896724 12.333 11.096 9.706 8.851 8.078 M0V 39 0
20 2MASS J05431737-0913513 Y*O 05 43 17.3818179984 -09 13 51.479004504           M3.3 15 0
21 NAME Columba Association As* 06 04 19.4 -22 20 40           ~ 337 0
22 2MASS J06063521-6911017 * 06 06 35.2274945130 -69 11 01.850872932           ~ 2 0
23 UCAC4 110-012461 * 06 32 07.9792436400 -68 10 41.987335692           ~ 7 0
24 2MASS J06564821-5825117 * 06 56 48.2128145568 -58 25 11.767849297           ~ 5 0
25 RX J0705.1-1008 PM* 07 05 11.9614641216 -10 07 52.752291996   17.011 15.101 14.872   M5.0V 16 0
26 Gaia DR3 5264164157114319232 PM* 07 29 17.5907049894 -72 05 40.688574909           ~ 2 0
27 V* YZ CMi PM* 07 44 40.1723046464 +03 33 08.875227574 13.761 12.831 11.225 9.958 8.263 M4.0Ve 957 0
28 UCAC4 155-012080 PM* 07 48 14.6700592269 -59 06 01.297001062           ~ 2 0
29 2MASS J08090313-3602178 PM* 08 09 03.1211018449 -36 02 17.807196512           ~ 2 0
30 NGC 2547 OpC 08 10 01.5 -49 12 08           ~ 445 0
31 V* EI Cha Or* 08 42 23.7595500240 -79 04 02.976309552     12.7     M1.5 71 0
32 Cl Mamajek 1 OpC 08 42 32.9 -78 57 47           ~ 392 0
33 V* ET Cha Or* 08 43 18.5853516024 -79 05 18.232481832     13.97     M4.0 99 0
34 RECX 16 LM* 08 44 09.1596371520 -78 33 45.774374724     18.4     M6.0 49 0
35 V* EN Cha Or* 08 44 16.421808 -78 59 08.06316   16.425 14.967 14.688   M4.5 70 0
36 V* EP Cha Or* 08 47 01.6439909496 -78 59 34.380161016     11.1     K5IVe 109 0
37 Gaia DR3 1127084875436523136 * 09 52 56.5512530981 +74 39 03.202304232           ~ 1 0
38 Gaia DR3 5202737637926463104 * 09 54 50.9893818618 -77 29 32.828500176           ~ 2 0
39 TWA 34 LM* 10 28 45.7992409512 -28 30 37.525747356       15.82   M5e 40 0
40 Gaia DR3 5448828818627498496 * 10 31 32.1683421715 -32 19 22.938212490           ~ 1 0
41 V* CE Ant TT* 10 42 30.1018928760 -33 40 16.229805204   12.21 10.91   9.10 M2Ve 252 1
42 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
43 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
44 TWA 28 LM* 11 02 09.8378779824 -34 30 35.562199176     21.46 19.14 17.90 M8.3 91 0
45 TWA 3 ** 11 10 27.894072 -37 31 51.96612   13.53 12.05 11.61 9.29 M4Ve+M4Ve 218 0
46 Gaia DR3 1148007344762673920 * 11 30 07.3552029224 +85 13 42.519005011           ~ 1 0
47 TWA 30 Y*O 11 32 18.3115839696 -30 19 51.857770620       14.205 11.30 M5V 75 0
48 CD-31 9113 PM* 11 35 26.9477670462 -32 32 23.884215079 12.508 11.322 9.813 8.821 7.664 M2V 188 1
49 TWA 33 Y*? 11 39 33.8249537040 -30 40 00.365859300   16.71 15.06 14.85   M5.5e 39 0
50 2MASS J11521197-7041557 * 11 52 11.9855337384 -70 41 55.847929272           ~ 5 0
51 TWA 31 PM* 12 07 10.8883274664 -32 30 53.755860744   18.5   16.4   M4.2 28 0
52 TWA 27 LM* 12 07 33.4675524840 -39 32 54.016625184     19.95 17.99 15.88 M8IVe 376 0
53 TWA 32 ** 12 26 51.366576 -33 16 12.54324   17.21 16.00 15.73   M6.3 32 0
54 * eta Crv PM* 12 32 04.2264018482 -16 11 45.618615379   4.658 4.294     F2V 353 0
55 HD 109573 TT* 12 36 01.0317461592 -39 52 10.220465388   5.786 5.774   5.81 A0V 684 1
56 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 742 1
57 Gaia DR3 6103605585151491840 * 14 18 31.0646451432 -42 23 14.144605900           ~ 1 0
58 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 894 0
59 UCAC2 22016625 PM* 15 03 45.8532334992 -24 01 03.771219216   14.150 12.863 12.49 11.29 ~ 6 0
60 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 717 2
61 LP 859-66 PM* 15 23 48.8550807048 -24 54 59.439484980     12.18     ~ 8 0
62 UCAC4 230-094982 PM* 15 42 42.5518487521 -44 08 52.848852683           ~ 3 0
63 2MASS J15460752-6258042 TT* 15 46 07.5236098872 -62 58 04.229738508           M5 11 0
64 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
65 2MASS J16364946-2630285 PM* 16 36 49.4593445688 -26 30 28.705043347           ~ 2 0
66 BD+25 3173 PM* 16 58 08.8496107083 +25 44 38.974052855 12.342 11.139 9.655 8.685 7.602 M2V 273 1
67 Gaia DR3 4158810446121819136 * 18 07 42.2118948567 -08 49 23.332784877           ~ 1 0
68 Gaia DR3 4498941035267186304 * 18 07 57.1832903621 +16 00 41.475126951           ~ 1 0
69 HD 319139 SB* 18 14 10.4818675368 -32 47 34.516836060   11.47 10.68   9.11 K5+K7 423 0
70 TYC 5124-1757-1 PM* 18 32 52.2571512648 -06 30 47.072043720   12.79 11.61     ~ 4 0
71 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1
72 Gaia DR3 4264597655301040128 * 19 21 23.0940352096 +01 21 45.531216600           ~ 1 0
73 2MASS J19270446+2606045 LM* 19 27 04.4699907600 +26 06 04.829115960           ~ 3 0
74 Gaia DR2 2024760150182176768 * 19 27 05.2503854081 +26 06 23.690720992           ~ 1 0
75 TYC 2679-1864-1 SB* 20 06 15.7258903800 +34 14 26.595671568   13.49 11.83     ~ 6 0
76 Gaia DR3 2074960277660403456 * 20 09 14.1576913043 +42 49 26.464422255           ~ 1 0
77 Gaia DR3 6668246656177173120 * 20 25 38.8913060048 -48 39 20.007838359           ~ 1 0
78 UCAC4 669-086820 * 20 31 47.8072777584 +43 42 15.848131356   15.474 13.693 13.333   M2 4 0
79 UCAC4 690-082075 PM* 20 33 14.9727234273 +47 53 11.707671897       16.062   ~ 2 0
80 V* AT Mic Er* 20 41 51.15925 -32 26 06.8283 12.753 11.909 10.343 9.098 7.383 M4.5Ve+M4.5Ve 371 0
81 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1344 0
82 UCAC4 076-045042 PM* 21 03 56.9751080837 -74 55 32.710616447       16.147   ~ 2 0
83 ATO J321.5777+58.4633 PM* 21 26 18.5680976391 +58 27 47.768130684           ~ 2 0
84 LP 398-13 PM* 21 39 42.0164891328 +25 59 18.057302160   17.7   15.9   ~ 5 0
85 Gaia DR3 6816660728557789952 * 21 46 06.7535489740 -22 50 06.584420850           ~ 1 0
86 G 263-10 PM* 21 58 24.5152059768 +75 35 20.608452888       10.163   M1V 81 0
87 2MASS J22354702+1142160 LM* 22 35 47.0256379704 +11 42 15.985385028           M7V 4 0
88 UCAC4 750-082976 PM* 23 27 04.0431578646 +59 56 56.943307720       14.682   ~ 2 0
89 NAME Carina Association As* ~ ~           ~ 188 1
90 NAME Argus Association As* ~ ~           ~ 266 0

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