2015ApJS..216...26G

Query : 2015ApJS..216...26G

2015ApJS..216...26G - Astrophys. J., Suppl. Ser., 216, 26 (2015/February-0)

A GALEX-based search for the sparse young stellar population in the Taurus-Aurigae star forming region.

GOMEZ DE CASTRO A.I., LOPEZ-SANTIAGO J., LOPEZ-MARTINEZ F., SANCHEZ N., SESTITO P., DE CASTRO E., CORNIDE M. and GESTOSO J.Y.

Abstract (from CDS):

In this work, we identify 63 bona fide new candidates to T Tauri stars (TTSs) in the Taurus-Auriga region, using its ultraviolet excess as our baseline. The initial data set was defined from the GALEX all sky survey (AIS). The GALEX satellite obtained images in the near-ultraviolet (NUV) and far-ultraviolet (FUV) bands where TTSs show a prominent excess compared with main-sequence or giants stars. GALEX AIS surveyed the Taurus-Auriga molecular complex, as well as a fraction of the California Nebula and the Perseus complex; bright sources and dark clouds were avoided. The properties of TTSs in the ultraviolet (GALEX), optical (UCAC4), and infrared (2MASS) have been defined using the TTSs observed with the International Ultraviolet Explorer reference sample. The candidates were identified by means of a mixed ultraviolet-optical-infrared excess set of colors; we found that the FUV-NUV versus J-K color-color diagram is ideally suited for this purpose. From an initial sample of 163,313 bona fide NUV sources, a final list of 63 new candidates to TTSs in the region was produced. The search procedure has been validated by its ability to detect all known TTSs in the area surveyed: 31 TTSs. Also, we show that the weak-lined TTSs are located in a well-defined stripe in the FUV-NUV versus J-K diagram. Moreover, in this work, we provide a list of TTSs photometric standards for future GALEX-based studies of the young stellar population in star forming regions.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: stellar content - stars: variables: T Tauri, Herbig Ae/Be - surveys - ultraviolet: stars

VizieR on-line data: <Available at CDS (J/ApJS/216/26): table2.dat>

Simbad objects: 127

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Number of rows : 127
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 V* WY Ari Or* 02 56 37.5658451640 +20 05 37.249715436   13.29 12.46     K5/6e 90 0
2 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1553 0
3 ATO J060.1767+28.8711 TT? 04 00 42.407 +28 52 16.04           ~ 2 0
4 NGC 1499 HII 04 03 18 +36 25.3           ~ 179 0
5 2MASS J04041017+2920137 TT? 04 04 10.173 +29 20 13.75           ~ 1 0
6 IRAS 04028+2948 Y*? 04 05 59.6239852944 +29 56 38.278256892   13.25 12.38 12.28   ~ 19 0
7 V* V1195 Tau TT* 04 06 51.350976 +25 41 28.26924   13.27 11.88 11.37 10.021 K6.5 35 0
8 2MASS J04081446+2137557 TT? 04 08 14.4646278576 +21 37 55.679626488           ~ 1 0
9 2MASS J04081562+3015424 TT? 04 08 15.6238765464 +30 15 42.330514104           ~ 1 0
10 2MASS J04090478+2855243 TT? 04 09 04.7848270320 +28 55 24.229948692           ~ 1 0
11 HD 281691 TT* 04 09 09.7467974736 +29 01 30.302914008   11.48 10.68 10.24   G8III 54 0
12 V* V1095 Tau TT* 04 13 14.1551534304 +28 19 10.668859500   15.32 13.81 13.62   M4 123 0
13 2MASS J04135121+2845400 TT? 04 13 51.2140350984 +28 45 39.919655232           ~ 1 0
14 IRAS 04108+2910 TT* 04 13 57.3771335616 +29 18 19.364600844   15.17       M0e 52 0
15 HD 283447 Or* 04 14 12.9261150912 +28 12 12.359055168 13.17 12.07 10.68 9.45 8.67 K3Ve 445 0
16 V* FM Tau Or* 04 14 13.5841955640 +28 12 49.168982592 14.44   13.80 13.64   M0/2e 227 0
17 V* CW Tau TT* 04 14 17.0042670144 +28 10 57.766508508 13.92 13.64 12.36 12.86   K0Ve 381 0
18 V* V1097 Tau BY* 04 14 30.6248237544 +28 51 29.716002072   12.0 11.15 11.26   M0 22 0
19 V* FP Tau Or* 04 14 47.3033083488 +26 46 26.414391720 17.21 16.14 15.02     M4Ve 189 0
20 V* CX Tau Or* 04 14 47.8615248984 +26 48 11.014877916 16.48 15.93 14.50     M1.5Ve 217 0
21 GALEX J041653.2+262418 ** 04 16 53.2847479948 +26 24 20.413740689   15.977 15.695 15.824   D+M5 9 0
22 2MASS J04185171+2351285 TT? 04 18 51.7147991904 +23 51 28.571775228           ~ 7 0
23 2MASS J04190251+3145533 SB* 04 19 02.5160304144 +31 45 53.399341260           kA6hF4mF6 4 0
24 V* BP Tau Or* 04 19 15.8339827632 +29 06 26.926959492   13.13 12.12 11.89   K5/7Ve 721 0
25 NAME Auriga reg 04 20 00.0 +38 05 00           ~ 238 0
26 V* DE Tau Or* 04 21 55.6347850824 +27 55 06.184016436 15.18 15.13 13.80     M3Ve 286 0
27 V* RY Tau TT* 04 21 57.4092550080 +28 26 35.555316612 10.82 10.34 9.30 9.67 8.87 K1IV/Ve 744 1
28 HD 283572 Or* 04 21 58.8484815456 +28 18 06.512641416   9.80 9.03 9.14   G5IVe 308 0
29 V* T Tau TT* 04 21 59.4319873992 +19 32 06.432393336   11.22 10.12 9.80   K0IV/Ve 1456 1
30 ATO J066.0839+28.8585 TT? 04 24 20.1429867096 +28 51 30.826737684           ~ 2 0
31 V* DF Tau TT* 04 27 02.7932020080 +25 42 22.453341516 11.97 12.25 11.42 10.31 9.14 M3Ve 528 1
32 2MASS J04274793+2430121 TT? 04 27 47.9332706808 +24 30 12.119774904           ~ 2 0
33 2MASS J04290082+3152597 TT? 04 29 00.8258546952 +31 52 59.867333220           ~ 2 0
34 2MASS J04292757+1735303 TT? 04 29 27.5704542864 +17 35 30.343940052           ~ 1 0
35 V* IQ Tau Or* 04 29 51.5569574040 +26 06 44.859710736 15.43   13.80 12.28 11.11 M0.5 281 0
36 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1453 0
37 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
38 V* DK Tau Or* 04 30 44.243376 +26 01 24.65328 13.32 14.59 13.05 12.08   K7e+K7e 350 0
39 V* ZZ Tau Or* 04 30 51.3867375744 +24 42 22.335046020     12.90 13.97   M2.5V+M3.5V 160 0
40 V* GH Tau Or* 04 33 06.2186830512 +24 09 33.584489856     13.20 12.59   M3Ve 197 0
41 V* V807 Tau Or* 04 33 06.6358574736 +24 09 54.977968116   12.10 11.21 11.18   K7 168 2
42 V* V697 Tau ** 04 33 23.76576 +23 59 27.0744   14.101 12.657 12.270   M3.0Ve 53 0
43 V* CI Tau Or* 04 33 52.0143963264 +22 50 30.094090908 14.97 15.09 13.80     K4IVe 422 1
44 2MASS J04360131+1726120 TT* 04 36 01.3134928776 +17 26 12.091195104           M3 24 0
45 RX J0437.4+1851B TT* 04 37 26.8466657448 +18 51 22.352070420       12.84   M0.5e 11 0
46 2MASS J04373956+3215005 TT? 04 37 39.5609342976 +32 15 00.614346408           ~ 1 0
47 PM J04393+3331 Er* 04 39 23.1885442642 +33 31 49.431639911   15.808 14.335 13.941   M4.0V 13 0
48 V* V583 Aur TT* 04 39 25.4483595840 +33 32 44.672191800   12.79 11.24 10.45   K5e 27 0
49 2MASS J04400671+3315109 TT? 04 40 06.7113711840 +33 15 10.962681804           ~ 1 0
50 2MASS J04402596+3339054 TT? 04 40 25.9651031400 +33 39 05.548104288           ~ 1 0
51 LP 415-1816 TT? 04 40 28.2712249440 +18 05 16.011614508   16.66 15.01     ~ 33 0
52 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
53 2MASS J04423721+3401492 TT? 04 42 37.218 +34 01 49.29           ~ 2 0
54 2MASS J04425267+3226241 TT? 04 42 52.6765065912 +32 26 24.184074696           ~ 1 0
55 ATO J070.9663+30.9725 TT? 04 43 51.9149891304 +30 58 21.241812396           ~ 2 0
56 2MASS J04441920+2924052 TT? 04 44 19.201 +29 24 05.20           ~ 1 0
57 HD 283782 TT* 04 44 54.4590108624 +27 17 45.223813068   10.69 9.80 9.47   K1e 42 0
58 2MASS J04455009+3438228 TT? 04 45 50.0846633856 +34 38 22.810521804           ~ 1 0
59 HD 30171 TT* 04 45 51.2948260920 +15 55 49.632455460   10.12 9.36   8.439 G5 63 0
60 2MASS J04460102+3213241 SB* 04 46 01.0271152704 +32 13 24.271306500           ~ 2 0
61 2MASS J04464475+2224508 TT? 04 46 44.7511363728 +22 24 50.823628164           ~ 4 0
62 V* DR Tau Or* 04 47 06.2151561264 +16 58 42.813872580 12.03 11.86 10.50 12.19   K5Ve 585 0
63 2MASS J04483286+3350356 TT? 04 48 32.8556899200 +33 50 35.981819448           ~ 1 0
64 V* V1341 Tau TT* 04 50 00.1930583400 +22 29 57.504414912   12.19 11.285   10.172 K1 33 0
65 2MASS J04504608+2126535 TT? 04 50 46.0841252280 +21 26 53.563258140           ~ 5 0
66 2MASS J04510713+1708468 TT? 04 51 07.1369267856 +17 08 46.743725436           ~ 3 0
67 2MASS J04513596+3043259 TT? 04 51 35.9600238816 +30 43 25.792776804           ~ 1 0
68 V* UY Aur Or* 04 51 47.3890167432 +30 47 13.551561492 12.82 12.96 11.90 10.59 9.52 M0e+M2.5e 379 0
69 2MASS J04515136+3353193 TT? 04 51 51.3574751760 +33 53 19.364106588           ~ 1 0
70 2MASS J04530307+2839128 SB* 04 53 03.0970997184 +28 39 12.886758864           ~ 2 0
71 2MASS J04532804+2430226 TT? 04 53 28.0431145512 +24 30 22.683499380           ~ 1 0
72 2MASS J04533269+2903351 TT? 04 53 32.6905161744 +29 03 35.141581692           ~ 1 0
73 2MASS J04533516+3214374 TT? 04 53 35.1572033616 +32 14 37.439028708           ~ 1 0
74 2MASS J04542368+1709534 TT* 04 54 23.6741496384 +17 09 53.495824464     13.5     M3.4 62 1
75 2MASS J04544145+2922029 TT? 04 54 41.4511009728 +29 22 02.932952592           ~ 1 0
76 2MASS J04550077+3048371 TT? 04 55 00.7835603832 +30 48 37.142345880           ~ 1 0
77 V* GM Aur Or* 04 55 10.9815576936 +30 21 59.373771876 14.59 13.351 12.242 11.798   K3Ve 797 0
78 2MASS J04551246+3319353 TT? 04 55 12.4637361264 +33 19 35.340029184           ~ 2 0
79 ATO J073.8186+35.3680 TT? 04 55 16.4849757456 +35 22 05.027397816           ~ 2 0
80 HD 282630 Or* 04 55 36.9695564640 +30 17 55.101300900   12.17 11.12 10.55   K0Ve 185 0
81 2MASS J04555065+3212546 SB* 04 55 50.6466518328 +32 12 54.549440280           ~ 5 0
82 V* SU Aur Or* 04 55 59.3866872552 +30 34 01.499608092   10.33 9.30 9.17   G2IIIne 628 0
83 2MASS J04562813+3429523 TT? 04 56 28.1235032184 +34 29 52.550322216           ~ 1 0
84 2MASS J04564525+2035116 TT? 04 56 45.2540422776 +20 35 11.521092804           ~ 5 0
85 2MASS J04570791+2429053 TT? 04 57 07.915 +24 29 05.40           kA3hF3mF6 7 0
86 V* V1354 Tau TT* 04 57 30.6551084688 +20 14 29.585897268   11.94 11.09 10.85 9.938 K1 44 0
87 2MASS J04580152+3205519 TT? 04 58 01.5170857416 +32 05 52.110573864           ~ 1 0
88 V* V1207 Tau TT* 04 58 39.7400575008 +20 46 44.000970276   13.15       K7 36 0
89 2MASS J04584354+3154503 TT? 04 58 43.5465677160 +31 54 50.330965824           ~ 1 0
90 V* BS Tau Or* 04 58 51.4024319736 +28 31 24.064301172   15.47 14.59 14.62   M2.5 24 0
91 [KW97] 20-19 Or* 04 59 03.0450204888 +30 03 00.336468204   15.56 14.23 13.79   M2 28 0
92 2MASS J04593776+3501023 TT? 04 59 37.760 +35 01 02.37           ~ 1 0
93 2MASS J04595003+3049082 SB* 04 59 50.0394831504 +30 49 08.115101040           ~ 4 0
94 V* GZ Aur Y*O 05 00 03.112032 +30 01 06.83004   16.25 15.27 14.84   M1.5+? 21 0
95 UCAC4 567-013279 HB* 05 00 49.509816 +23 17 58.88004   12.847 11.929 11.828   kA3hF3mF6 13 0
96 RX J0500.9+3229 ** 05 00 54.839880 +32 29 16.81332   16.273 14.777 14.491   ~ 2 0
97 V* V836 Tau TT* 05 03 06.5988375912 +25 23 19.606639488   15.00 13.49 13.48   K7/M0Ve 249 0
98 2MASS J05050147+3053139 TT? 05 05 01.4745913104 +30 53 13.821766404           ~ 1 0
99 2MASS J05050770+2923477 TT? 05 05 07.7147513712 +29 23 47.669113356           ~ 5 0
100 2MASS J05051510+3057512 TT? 05 05 15.1147954944 +30 57 51.200435412           ~ 1 0
101 2MASS J05063024+2845365 TT? 05 06 30.2496781920 +28 45 36.745900200           ~ 1 0
102 2MASS J05063512+3207283 TT? 05 06 35.128 +32 07 28.38           ~ 1 0
103 V* HO Aur Em* 05 07 46.9695810768 +31 20 18.550140720   13.03 11.81     ~ 13 0
104 V* RW Aur TT* 05 07 49.5662483 +30 24 05.177426   10.86 9.60 9.95   K1/5e+K5e 816 0
105 2MASS J05085935+2505126 TT? 05 08 59.3547405096 +25 05 12.595924392           kA6hF4mF6 5 0
106 2MASS J05101422+3029452 TT? 05 10 14.2241929752 +30 29 45.305067408           ~ 1 0
107 V* V600 Aur TT* 05 10 22.3358894832 +31 26 40.171534440   12.07 11.39 11.01   K2IV 13 0
108 2MASS J05150696+2701493 TT? 05 15 06.9588141144 +27 01 49.340323704           ~ 1 0
109 V* V1361 Tau TT* 05 21 46.8379337376 +24 00 44.452416708   11.49 10.516 9.77 9.381 K3 23 0
110 2MASS J05240794+2542438 TT? 05 24 07.9388224272 +25 42 43.801073424           M3.1 10 0
111 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1080 0
112 V* GW Ori TT* 05 29 08.3928710640 +11 52 12.666457092   10.83 10.10 9.52   G5/8Ve 382 0
113 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
114 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
115 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
116 V* CV Cha Or* 11 12 27.7055693328 -76 44 22.302807396   12.02 10.98 10.51 9.76 G9Ve 216 1
117 TWA 27 LM* 12 07 33.4675524840 -39 32 54.016625184     19.95 17.99 15.88 M8IVe 376 0
118 V* RU Lup TT* 15 56 42.3108692112 -37 49 15.473946900 9.27 10.07 9.60     K7/M0e 528 0
119 NAME Lupus Complex SFR 16 03 -38.1           ~ 851 0
120 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
121 V* AK Sco Ae* 16 54 44.8491575376 -36 53 18.566586456 9.80 9.63 9.00     F5V 304 1
122 CD-27 11363 TT* 17 00 34.9771479264 -27 38 04.401776472   11.67 10.88     K2Ve 39 0
123 HD 319139 SB* 18 14 10.4818675368 -32 47 34.516836060   11.47 10.68   9.11 K5+K7 423 0
124 BD-10 4662A Or* 18 20 22.7419817184 -10 11 13.602587568   12.58 10.99     K5Ve 17 0
125 BD-10 4662 TT* 18 20 22.74972 -10 11 13.6263   12.00 10.62 10.24 8.884 K5Ve+K7Ve 89 0
126 V* DI Cep Or* 22 56 11.5377385392 +58 40 01.773069276   12.01 11.95     G8IVe 141 0
127 NAME Gould Belt PoG ~ ~           ~ 956 1

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