1998AJ....116.1933C

Query : 1998AJ....116.1933C

1998AJ....116.1933C - Astron. J., 116, 1933-1939 (1998/October-0)

An X-ray survey of very young stellar objects.

CARKNER L., KOZAK J.A. and FEIGELSON E.D.

Abstract (from CDS):

Several recent studies with the ROSAT and ASCA satellites have reported X-ray emission from Class I protostars. We present here an X-ray survey of 156 protostellar sources using archived ROSAT PSPC pointed observations. Targets are drawn from four samples: low-temperature objects in nearby star forming regions, Herbig-Haro outflow sources, CO outflow sources, and Class 0 embedded protostars. Over 90% are not detected at the 3 σ limit over the 1.0-2.4 keV band, with upper limits of 0.1-40 counts.ks–1 corresponding to log LX ≃ 28-33 ergs.s–1. Of the 11 detected objects, 10 are either Class II or III stars or previously detected Class I protostars. One new Class I source, Ced 110 IRS 6 in the Chamaeleon I cloud, is found. The X-ray luminosity function of protostars is calculated, but is quite uncertain. We conclude that X-ray emission from protostars has a broad luminosity function and that very X-ray luminous (LX ≳ 1031 ergs.s–1) protostars are rare.

Abstract Copyright: ∼

Journal keyword(s): Stars: Activity - Stars: Pre-Main-Sequence - X-Rays

CDS comments: Table 2 : GK-1 = HBC 582. Table 4 : L1641 S2, S3, S4 = KMS 93, 59, 85. Table 5 : IRAS 03282 = IRAS 03282+3035 (misprint in delta : 03 for 30).

Simbad objects: 174

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Number of rows : 174
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME V633 Cas B Y*O 00 11 25.81 +58 49 34.6           ~ 9 2
2 EM* LkHA 198 Ae* 00 11 25.8495450336 +58 49 28.713961920   14.65 13.79 14.03   B9e 223 0
3 V* V376 Cas Ae* 00 11 26.5410514344 +58 50 03.929517960           A3/F2e 96 1
4 IRAS 01133+6434 Y*O 01 16 36.67827 +64 50 41.7300           ~ 37 0
5 [TGC97] W3Md1 Rad 02 25 40.77 +62 05 52.4           ~ 17 0
6 IC 1805 OpC 02 32 50.4 +61 28 16           ~ 519 1
7 NAME AFGL 4029 IRS 1 Y*O 03 01 29.2 +60 29 12           ~ 110 1
8 NAME W 5 East MoC 03 01 32 +60 29.2           ~ 128 2
9 LDN 1448 DNe 03 22.5 +30 35           ~ 515 0
10 CoKu NGC 1333 Star 1 Y*O 03 25 09.43032 +30 46 21.5796           M2.6 98 0
11 SSTc2d J032536.4+304522 Y*O 03 25 36.49 +30 45 22.2           ~ 200 1
12 LDN 1448NA smm 03 25 36.49 +30 45 22.2           ~ 184 1
13 IRAS 03225+3034 IR 03 25 36.49 +30 45 22.2           ~ 159 1
14 NAME LDN 1455 IRS 1 cor 03 27 39.08 +30 13 03.1           ~ 161 0
15 2MASS J03274767+3012043 Y*O 03 27 47.6828532408 +30 12 04.456916028     19.6     M3.0 103 1
16 IRAS 03255+3103 Y*O 03 28 37.06800 +31 13 31.0044           ~ 89 1
17 V* V512 Per Or* 03 29 03.7578170808 +31 16 03.947525688           M3.5 386 0
18 IRAS 03282+3035 cor 03 31 20.98 +30 45 30.1           ~ 176 0
19 HH 211 Y*O 03 43 56.52 +32 00 52.8           ~ 368 0
20 IC 348 OpC 03 44 31.7 +32 09 32           ~ 1392 1
21 IRAS 03439+3233 Y*O 03 47 05.44704 +32 43 08.4324           ~ 57 0
22 V* CW Tau TT* 04 14 17.0042670144 +28 10 57.766508508 13.92 13.64 12.36 12.86   K0Ve 355 0
23 IRAS 04113+2758 ** 04 14 26.31 +28 06 04.5           ~ 62 0
24 IRAS 04154+2823 Y*O 04 18 32.0443900008 +28 31 14.971419300           M2.5 63 0
25 IRAS 04158+2805 Y*O 04 18 58.1336295120 +28 12 23.355499140           M5.25 105 0
26 V* T Tau TT* 04 21 59.4319873992 +19 32 06.432393336   11.22 10.12 9.80   K0IV/Ve 1404 1
27 IRAS 04191+1523 Y*O 04 22 00.43944 +15 30 21.2148           ~ 199 0
28 V* DG Tau Or* 04 27 04.6921275888 +26 06 16.060169268 13.57 13.97 10.50 12.28   K6Ve 1023 1
29 IRAS 04248+2612 Y*O 04 27 57.3239527944 +26 19 18.033264696           M 154 0
30 IRC +20082 OH* 04 29 07.6303239624 +24 43 50.048839668   20.57 17.37   10.45 M8III 74 0
31 V* GV Tau TT* 04 29 23.7314759229 +24 33 00.216016292 19.20         K7 283 0
32 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1357 0
33 V* ZZ Tau Or* 04 30 51.3867375744 +24 42 22.335046020     12.90 13.97   M2.5V+M3.5V 149 0
34 LDN 1551 DNe 04 31 30.0 +18 12 30           ~ 805 1
35 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 862 0
36 V* V1213 Tau Or* 04 31 37.5055489536 +18 12 24.383952396           K7 567 0
37 V* XZ Tau Or* 04 31 40.0868968022 +18 13 56.642439056     10.40 13.12   M2e+M2e 444 1
38 2MASS J04314444+1808315 Y*O 04 31 44.44680 +18 08 31.5384           ~ 168 0
39 LDN 1642 MoC 04 35 18 -14 13.9           ~ 153 0
40 IRAS 04325+2402 Y*O 04 35 35.39160 +24 08 19.4244           ~ 159 0
41 V* DO Tau Or* 04 38 28.5880527336 +26 10 49.467596196 12.78 13.44 12.30 13.01   M1Ve 375 1
42 IRAS 04361+2547 Y*O 04 39 13.89288 +25 53 20.8788           ~ 196 1
43 IRAS 04365+2535 Y*O 04 39 35.19360 +25 41 44.7252           ~ 290 0
44 IRAS 04368+2557 Y*O 04 39 53.97816 +26 03 09.6804           ~ 278 0
45 IRAS 04381+2540 Y*O 04 41 12.67920 +25 46 35.4216           K0-M2 129 1
46 Haro 6-33 TT* 04 41 38.8257958224 +25 56 26.741499648     18.40     M0.5 124 2
47 V* DP Tau Or* 04 42 37.6989071232 +25 15 36.983641716 15.84 15.2 13.70 14.42   M0.8 172 1
48 IRAS 04489+3042 Y*O 04 52 06.6862507800 +30 47 17.007457092           M2 66 0
49 2MASX J05181754+0710589 Y*O 05 18 17.549 +07 10 58.96           ~ 24 0
50 NAME RNO 43 FIR HH 05 32 23.0 +12 49 54           ~ 46 0
51 RNO 43S HH 05 32 24 +12 52.1           ~ 8 0
52 Haro 4-145 Y*O 05 32 43.4178525432 -05 35 57.290459748     16.8     M1.7 49 0
53 [EC2006] MM12 HII 05 35 13.41015 -05 24 11.1770           ~ 47 1
54 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2293 1
55 OMC 2 MoC 05 35 27 -05 10.1           ~ 450 1
56 NAME LDN 1641 North HII 05 36 17.6 -06 22 10           ~ 239 0
57 GBS-VLA J053622.86-064606.6 Y*O 05 36 22.84 -06 46 06.2           ~ 107 0
58 NGC 1999 RNe 05 36 25 -06 42.7   9.5       ~ 102 0
59 BD-06 1253 Ae* 05 36 25.4320468080 -06 42 57.684730284   11.65 10.9 10.29   A1e 435 1
60 IRAS 05341-0530 IR 05 36 38.85 -05 28 11.3           ~ 17 0
61 HGBS J053805.2-014513 Y*O 05 38 05.26 -01 45 13.4           ~ 30 0
62 LDN 1641 MoC 05 39.0 -07 00           ~ 479 0
63 Haro 4-255 Y*O 05 39 22.3402033872 -07 26 44.480192532   15 15.830   12.969 K0 102 0
64 NAME LDN 1641 S3 HII 05 39 56.1 -07 30 26           ~ 65 0
65 NAME Reipurth 50 IR IR 05 40.4 -07 26           ~ 9 0
66 NAME LDN 1641 South DNe 05 40 27.6 -07 27 28           ~ 59 1
67 NAME LDN 1641 S4 mul 05 40 48.8 -08 06 51           ~ 43 0
68 NAME Flame Nebula HII 05 41 42.7 -01 54 44           ~ 703 1
69 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1376 0
70 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1154 1
71 2MASS J05424706-0817069 Y*O 05 42 47.067 -08 17 06.93           M5 54 0
72 HH 212 HH 05 43 51.41 -01 02 53.1           ~ 391 1
73 NGC 2071 RNe 05 47 10 +00 18.0           ~ 645 1
74 Ass Mon R 2 As* 06 07 47.8 -06 22 55           ~ 47 1
75 NAME GGD 12-15 OpC 06 10 52.1 -06 12 47           ~ 151 1
76 LBN 192.48-00.21 HII 06 11 59 +18 03.3           ~ 93 0
77 SH 2-258 HII 06 13 28 +17 55.5           ~ 75 0
78 RNO 73 ISM 06 33 31.1 +04 00 07           ~ 19 0
79 RAFGL 961 Y*O 06 34 37.74144 +04 12 44.1972           O-rich 240 1
80 V* R Mon Ae* 06 39 09.9542000448 +08 44 09.539482632 10.76 12.46 11.85 10.96 10.25 B8IIIe 515 0
81 NGC 2264 OpC 06 40 52.1 +09 52 37           ~ 1793 0
82 IRAS 06382+1017 Y*O 06 41 02.660 +10 15 01.91           ~ 51 0
83 NAME Mon OB1 H PoC 06 41 03 +10 37.0           ~ 14 1
84 NAME Mon OB1 D PoC 06 41 09.9 +09 34 34           ~ 59 1
85 NAME Mon OB1 G PoC 06 41 12 +09 55.6           ~ 107 0
86 NAME CMa W * 06 59 12.9 -11 58 57           ~ 13 0
87 SH 2-287 B ISM 06 59 34 -04 46.0           ~ 9 0
88 IRAS 06579-0432 Y*? 07 00 23.028 -04 36 35.87           ~ 23 0
89 LDN 1660 DNe 07 20 06.6 -24 02 21           ~ 30 1
90 DCld 265.8-07.4 DNe 08 20 58.4 -49 34 44           ~ 29 0
91 Ass Cha T 2-21 TT* 11 06 15.3471261840 -77 21 56.720362608   12.58 11.01   9.35 G5Ve 131 0
92 IRAS 11051-7706 Y*O 11 06 46.025 -77 22 29.67           ~ 87 0
93 [PMG2001] NIR 76 Y*? 11 06 46.580 -77 22 32.56           ~ 55 0
94 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1154 1
95 IRAS 11057-7706 Y*O 11 07 09.19896 -77 23 04.9920           ~ 63 0
96 NAME Cha IR Nebula TT* 11 08 38.702 -77 43 51.54           M5.5 72 0
97 Ass Cha T 1-23 Or* 11 09 53.4189070920 -76 34 25.652641116   13.9 19.50 15.10 13.52 G9IIIe 96 0
98 V* FN Cha Or* 11 10 04.6714603680 -76 35 45.253161564     14.68 13.89 12.39 K5Ve 59 0
99 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 806 0
100 V* DK Cha TT* 12 53 17.2111480272 -77 07 10.736046012           F0e 142 0
101 VdBH 65a * 15 01.1 -63 17   15.7 13.9     ~ 12 0
102 SS73 44 Ae* 15 03 23.7945901488 -63 22 58.880622108   13.88 12.75     Ae/B[e] 50 1
103 Barnard 228 cor 15 43 00.9 -34 08 48           ~ 68 0
104 IRAS 15398-3359 Y*? 15 43 02.21016 -34 09 07.7112       18.38 21.72 ~ 174 0
105 CD-33 10685 Or* 15 45 12.8678037432 -34 17 30.644403036 12.47 11.56 10.224 9.60 8.685 K3Ve 272 1
106 NAME HH 55 IRS * 15 56 36.7764511752 -37 50 52.018136556           ~ 28 0
107 NAME Lupus Complex SFR 16 03 -38.1           ~ 720 0
108 WRAY 16-203 Or* 16 08 29.7275063376 -39 03 11.024360496   16.26 15.91 15.38 15.69 K0: 170 1
109 YLW 21 * 16 25 47.6950923936 -24 18 31.122142488           ~ 11 0
110 GSS 30 Y*O 16 26 21.38160 -24 23 04.0524           ~ 210 1
111 [JJK2008] SMM J162622-24225 smm 16 26 21.60 -24 22 54.8           ~ 41 0
112 [CHG85] GSS 30 IRS 3 Y*O 16 26 21.77376 -24 22 51.3948           ~ 66 0
113 NAME VLA 1623-243 Y*O 16 26 26.42 -24 24 30.0           ~ 404 0
114 [SSG2006] MMS002 smm 16 26 26.50 -24 24 30.9           ~ 241 0
115 VSSG 30 Y*O 16 26 44.19504 -24 34 48.3492           ~ 135 0
116 WL 22 TT* 16 26 59.16720 -24 34 58.8072           ~ 65 0
117 WL 16 Y*O 16 27 02.33520 -24 37 27.2316           A0-F3 157 0
118 VSSG 31 Or* 16 27 04.10688 -24 28 29.9136           ~ 61 1
119 Elia 2-29 Y*O 16 27 09.43032 -24 37 18.7716           ~ 283 1
120 NAME rho Oph B Cloud MoC 16 27 11 -24 28.5           ~ 84 1
121 YLW 10B Y*O 16 27 15.45432 -24 26 39.8004           ~ 51 0
122 BBRCG 39 Y*O 16 27 18.38040 -24 39 14.6844           ~ 41 0
123 WL 6 Y*O 16 27 21.80448 -24 29 53.3616           ~ 115 0
124 YLW 15 Y*O 16 27 26.906 -24 40 50.81           ~ 268 1
125 YLW 16A Y*O 16 27 28.02744 -24 39 33.5052           K8 194 0
126 YLW 16B Or* 16 27 29.43528 -24 39 16.1892           ~ 106 0
127 IRAS 16245-2423 TT* 16 27 37.1906433768 -24 30 35.025246828       16.66 14.67 B5-F2 307 0
128 YLW 45 Y*O 16 27 39.82824 -24 43 15.0672           ~ 115 0
129 YLW 52 Y*O 16 27 51.80472 -24 31 45.5304           ~ 70 0
130 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3629 1
131 LDN 1709 DNe 16 31 34.8 -24 02 55           ~ 76 0
132 IRAS 16285-2355 Y*O 16 31 35.65752 -24 01 29.4708           ~ 138 0
133 NAME rho Oph South IR 16 31 56.0 -24 56 28           ~ 28 0
134 WLY 2-67 Y*O 16 32 00.99624 -24 56 41.9640           ~ 63 0
135 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1252 1
136 HBC 645 Em* 16 32 27.22 -44 55 36.0           ~ 25 0
137 IRAS 16289-4449 Or* 16 32 32.19264 -44 55 30.6552       15.95   ~ 137 1
138 RAFGL 2046 HII 18 00 32.1 -24 04 03           ~ 361 0
139 RAFGL 2059 Y*O 18 04 53.1586569336 -24 26 41.642012796 19.905 21.910 18.914   14.078 ~ 144 0
140 GAL 035.2-00.74 cor 18 58 13.00 +01 40 36.0           ~ 169 0
141 IRAS 18556+0136 mul 18 58 13.1 +01 40 35           ~ 139 0
142 V* S CrA Or* 19 01 08.597088 -36 57 19.89504   11.76 10.91 11.41   G0Ve+K0Ve 270 0
143 [TS84] IRS 2 Y*O 19 01 41.569 -36 58 31.23           K2 85 0
144 2MASS J19014805-3657219 Y*O 19 01 48.056 -36 57 21.95           ~ 102 0
145 V* V710 CrA Or* 19 01 50.67792 -36 58 09.6132           K7: 125 0
146 NAME Corona Australis Cloud MoC 19 01 51 -36 58.9           ~ 490 0
147 [WMB97] 185830.2-370122 Y*O 19 01 52.63 -36 57 00.2           ~ 30 0
148 V* R CrA Ae* 19 01 53.6764322232 -36 57 08.299341828 12.781 12.651 11.917 11.242 10.412 B5IIIpe 478 1
149 2MASS J19015545-3657231 Y*O 19 01 55.460 -36 57 23.13           ~ 97 2
150 IRAS 18595-3712 Y*O 19 02 58.706 -37 07 34.67           ~ 49 0
151 EM* AS 353 Or* 19 20 30.9918166680 +11 01 54.605482968   13.22 12.21     K5 187 1
152 LDN 673 DNe 19 20 54.4 +11 13 12           ~ 73 0
153 IRAS 19345+0727 cor 19 37 00.7 +07 34 08           ~ 89 0
154 LDN 810 DNe 19 45 23.8630 +27 50 57.840           ~ 62 0
155 W 58a HII 20 01 45.8 +33 32 43           ~ 289 4
156 IRAS 20126+4104 Y*O 20 14 25.8816769656 +41 13 36.879427236           B2.5-B0.5 440 0
157 IRAS 20183+3700 MIR 20 20 14.10192 +37 10 19.4628           ~ 7 0
158 LBN 077.61+01.59 HII 20 20 39.3 +39 37 52           ~ 78 0
159 RAFGL 2591 Y*O 20 29 24.8230 +40 11 19.590           ~ 622 0
160 EM* LkHA 190 Or* 20 58 53.7335347296 +44 15 28.388727720   14.26 12.33 12.13   F7/G3I/IIe 510 0
161 LDN 1172D DNe 21 02 08.9 +67 53 54           ~ 15 0
162 [G85] 12 CGb 21 40 29.5 +56 35 33           ~ 63 0
163 NAME IC 1396 North CGb 21 40 42.6537 +58 16 01.882           ~ 189 1
164 NGC 7129 OpC 21 42 58 +66 06.8     11.5     ~ 260 0
165 EM* LkHA 234 Ae* 21 43 06.8218113480 +66 06 54.202272804 13.65 13.61 12.73 11.98 11.20 B5Ve 286 0
166 V* V1735 Cyg Or* 21 47 20.6628414360 +47 32 03.857457372           ~ 160 0
167 BD+46 3471 Ae* 21 52 34.0992801288 +47 13 43.605617340 10.72 10.56 10.15     A0.5IIIer 210 1
168 LDN 1211 DNe 22 47 39 +62 01.3           ~ 37 0
169 NAME Cep A HW 2 Y*O 22 56 17.9 +62 01 49           B0.5 227 0
170 NAME Cepheus A SFR 22 56 17.9 +62 01 49           ~ 738 2
171 IRAS 23032+5937 HII 23 05 23.1 +59 53 53           ~ 37 0
172 [WBN74] NGC 7538 IRS 1 Y*O 23 13 45.318 +61 28 11.69           ~ 413 3
173 IRAS 23139+5939 Y*O 23 16 10.3420 +59 55 28.596           ~ 97 0
174 EM* MWC 1080 Ae* 23 17 25.5895018656 +60 50 43.444557384   13.24 11.85 11.251   B0eq 323 0

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