2005A&A...437..919T


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET20:19:11

2005A&A...437..919T - Astronomy and Astrophysics, volume 437, 919-928 (2005/7-3)

Search for new T Tauri stars in the Cepheus-Cassiopeia region.

TACHIHARA K., NEUHAEUSER R., KUN M. and FUKUI Y.

Abstract (from CDS):

The Cepheus-Cassiopeia star-forming region has been searched for new T Tauri stars (TTSs) based on the ROSAT all sky survey (RASS). Optical spectroscopic observations were carried out toward 45 GSC stellar counterparts of RASS sources looking for the Li absorption line (6708Å), a sign of youth. The detection of this line resulted in finding 11 to 16 new TTSs in this region. Using follow-up optical photometric observations and evolutionary models these Li-rich stars are revealed to be young low-mass stars. The most of the young stars are separated from the 13CO molecular clouds by ∼10pc, significantly more than in Chamaeleon. A group of the new TTSs are isolated from the CO clouds and distributed inside the previously determined CO void. Possible formation scenarios including the interaction with the supernova shock for the isolated TTSs are discussed.

Abstract Copyright:

Journal keyword(s): ISM: clouds - ISM: molecules - stars: formation - stars: late-type - stars: pre-main sequence - X-rays: stars

Nomenclature: Tables 1, 2: [TNK2005] NN (Nos 1-46). Table 3: [TNK2005] NNcN N=5x2.

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 - 2021
#notes
1 TYC 4306-1190-1 * 00 00 02.0802481435 +73 39 46.289854477   13.00 11.93     ~ 1 0
2 TYC 4496-2286-1 * 00 01 42.5556721516 +77 31 06.200724948   13.15 12.02     ~ 2 0
3 1RXS J002827.8+785750 EB* 00 28 27.9679002642 +78 57 42.657027779   11.23 10.60     ~ 8 0
4 2MASS J00380610+7903206 Y*? 00 38 06.1241317372 +79 03 20.633467058 11.74 11.21 11.34 9.96 9.60 K1V 13 0
5 TYC 4500-1549-1 EB* 00 39 06.2037717470 +79 19 09.616118614   13.09 11.96     K6 5 0
6 GSC 04307-01640 * 00 46 22.3550268375 +74 12 48.872750354   12.7       ~ 1 0
7 IREC 169 DNe 00 48 +72.5           ~ 4 0
8 GSC 04296-00542 Ro* 00 53 00.4358291144 +68 21 22.603306048   12.1 12.11     ~ 5 0
9 TYC 4304-1407-1 * 01 01 17.3326582227 +71 31 12.653766596   11.74 10.73     ~ 2 0
10 V* V1065 Cas Al* 01 09 28.8657586188 +68 39 14.762645585   11.43 10.31     ~ 4 0
11 NAME Loop III SR? 01 12 +78.3           ~ 76 1
12 TYC 4305-1893-1 * 01 19 34.4133741308 +71 30 31.831934934   12.14 11.38     ~ 1 0
13 GSC 04309-00722 PM* 01 29 29.1125224163 +74 44 49.560888733   13.96 12.87 12.59   ~ 2 0
14 TYC 4314-1757-1 SB* 01 39 25.9228608031 +70 18 50.007114416   10.83 10.16     ~ 3 0
15 GSC 04499-02076 * 02 20 37.1526725112 +77 44 13.318225758   11.9       ~ 1 0
16 LDN 1333 DNe 02 26 04 +75 28.5           ~ 53 0
17 GSC 04312-00734 * 02 26 12.8275014985 +68 11 32.921926992   12.2       ~ 1 0
18 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 3064 0
19 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3652 0
20 NAME eta Cha Association MGr 08 42 06 -79 01.6           ~ 316 0
21 IC 2602 OpC 10 42 58 -64 24.0           ~ 571 0
22 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 708 0
23 NAME Lup Cloud SFR 16 03 -38.1           ~ 553 0
24 TYC 4589-2335-1 * 20 05 48.9059120726 +77 05 53.107460476   12.61 11.06     ~ 1 0
25 TYC 4589-369-1 * 20 11 53.6904 +78 34 37.376   12.51 11.70     ~ 1 0
26 TYC 4244-322-1 PM* 20 14 26.1191542678 +66 05 19.961133784   12.28 11.57     ~ 2 0
27 GSC 04241-01092 * 20 19 48.79 +65 34 11.7           ~ 1 0
28 TYC 4589-1101-1 * 20 20 29.3724080840 +78 07 22.257773534   11.13 10.33     G8 3 0
29 TYC 4459-83-1 Ro* 20 25 15.4130643724 +73 36 33.369120949   11.53 10.70     K0 6 0
30 TYC 4451-1270-1 * 20 33 43.7982971135 +70 53 18.942253593   13.35 11.62     ~ 2 0
31 GSC 04451-00172 * 20 38 13.7627006286 +69 24 12.716117664   12.8       ~ 1 0
32 TYC 4455-856-1 * 20 43 28.3614604729 +71 15 46.588228896   12.73 12.26     ~ 1 0
33 GSC 04594-01127 * 20 53 12.0622646525 +79 20 21.864218826   12.4       ~ 1 0
34 TYC 4255-314-1 * 20 56 09.4202353228 +65 10 31.296684475   10.83 10.34     ~ 1 0
35 IRAS 20582+7724 Y*O 20 57 12.9187221407 +77 35 43.655738044           ~ 113 0
36 LDN 1228 DNe 20 57 13 +77 35.8           ~ 122 0
37 TYC 4586-348-1 * 21 04 20.9553921652 +75 04 05.047033536   11.83 11.14     ~ 3 0
38 TYC 4464-1372-1 Ro* 21 10 24.5221225281 +70 45 57.560469780   11.79 11.00     ~ 4 0
39 TYC 4586-1090-1 Ro* 21 11 29.3400298339 +76 14 28.939510557   12.46 11.50     G8 4 0
40 TYC 4460-1614-1 * 21 11 43.8853425905 +68 54 23.163563310   11.21 10.57     ~ 1 0
41 GSC 04465-01410 RS* 21 32 53.8788925772 +70 37 43.679953227   12.0       ~ 2 0
42 TYC 4607-461-1 Ro* 21 37 47.5784934111 +80 32 31.188406366   12.50 11.42     ~ 4 0
43 TYC 4607-611-1 * 21 42 57.6557559085 +80 30 19.627090492   12.06 11.46     ~ 1 0
44 LDN 1241 DNe 21 50.0 +76 44           ~ 16 0
45 MBM 163 MoC 21 53.1 +80 29           ~ 3 0
46 MBM 164 MoC 21 56.1 +80 49           ~ 2 0
47 MBM 165 MoC 21 58.1 +80 46           ~ 3 0
48 TYC 4275-1998-1 Ro* 22 05 25.8003868412 +65 52 19.826390205   11.69 10.98     ~ 3 0
49 LDN 1243 DNe 22 10.3 +75 09           ~ 9 0
50 2MASS J22111127+7917599 Y*? 22 11 11.2394310016 +79 18 00.030216665   12.5       K7 2 0
51 TYC 4463-818-1 Ro* 22 11 57.8131686459 +68 19 52.500115216   12.51 11.73     ~ 4 0
52 LDN 1247 DNe 22 21.9 +75 06           ~ 15 0
53 2MASS J22270525+6521313 Y*? 22 27 05.2528884907 +65 21 31.331172597   12.7       K4 3 0
54 LDN 1221 DNe 22 28 02.9 +69 01 13           ~ 46 0
55 LDN 1242 DNe 22 31.2 +73 15           ~ 5 0
56 TYC 4480-917-1 * 22 33 44.8410258947 +70 33 18.243220991   12.89 11.13     K3 3 0
57 LDN 1251 DNe 22 36.1 +75 16           ~ 99 0
58 2MASS J22395815+7749394 Y*? 22 39 58.1746787112 +77 49 39.465664248   12.49 11.93     K2 3 0
59 TYC 4601-1894-1 * 22 51 35.7018042791 +76 35 53.760900805   12.51 11.93     ~ 2 0
60 TYC 4605-2733-1 * 23 00 44.5731877773 +77 28 38.508393510   11.78 11.41     K0 6 0
61 GSC 04605-00268 Ro* 23 05 36.4750230376 +78 22 38.958167149   12.7 12.9     K6 3 0
62 TYC 4601-938-1 * 23 07 56.5614443040 +76 51 47.722974466   11.89 10.71     ~ 1 0
63 GSC 04489-00036 * 23 09 43.4994283770 +73 57 15.323925789   12.2   12.45   K7 2 0
64 2MASS J23161828+7841558 Y*? 23 16 18.3316370198 +78 41 55.950899645   12.70 11.74     K4 7 0
65 LDN 1259 DNe 23 22.9 +74 16           ~ 11 0
66 LDN 1262 MoC 23 25 47 +74 17.6           ~ 130 0
67 LDN 1261 DNe 23 27.0 +74 17           ~ 11 0
68 NAME Cep Flare MoC 23 34 +72.0           ~ 107 0
69 GSC 04479-00348 * 23 43 41.9740695037 +68 46 27.112883948   12.6       K2 1 0
70 TYC 4610-1318-1 Ro* 23 51 10.1342141789 +78 58 04.971806412   12.39 11.24     K1 4 0
71 LDN 1260 DNe 23 57.0 +64 57           ~ 5 0
72 LDN 1274 MoC 23 57.5 +70 57           ~ 8 0
73 NGC 7790 OpC 23 58 24 +61 12.5   9.18 8.5     ~ 249 0
74 [TNK2005] 5c2 TT* ~ ~     14.12     M2 1 0
75 NAME Gould Belt PoG ~ ~           ~ 749 1
76 NAME Cas-Cep Region vid ~ ~           ~ 16 0
77 [TNK2005] 4c2 TT* ~ ~     13.86     K7 1 0
78 [TNK2005] 43c2 TT* ~ ~     15.55     M3 1 0
79 [TNK2005] 37c2 TT* ~ ~     14.86     F4 1 0
80 [TNK2005] 36c2 TT* ~ ~     14.69     M4 1 0

    Equat.    Gal    SGal    Ecl

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2021.03.08-20:19:11

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