2002A&A...384..890B

Query : 2002A&A...384..890B

2002A&A...384..890B - Astronomy and Astrophysics, volume 384, 890-898 (2002/3-4)

Optical properties of X-ray selected stars in NGC 2244 in the Rosette Nebula.

BERGHOEFER T.W. and CHRISTIAN D.J.

Abstract (from CDS):

We present high spatial resolution optical photometry of NGC 2244 in the Rosette Nebula using the NOAO MOSAIC Imager at Kitt Peak. We obtained BVIR and Hα images of the central cluster and surrounding nebulae, and present results for 138 sources selected from X-ray observations with the ROSAT PSPC and HRI. Color-magnitude diagrams of the cluster show a large number of the stars are still undergoing contraction onto the main sequence. The faintest X-ray selected cluster members have the highest X-ray-to-optical luminosities (Lx~>7x1030erg/s; Lx/Lbol≃10–2 to 10–3) and indicate they are a population of young active late-type stars. Hα emission from the X-ray emitters is also remarkable. We have extended the detections of PMS stars in NGC 2244 well into the range of K spectral types. While most of the cluster stars are located in the color-magnitude diagrams in between the ZAMS and the 3Myrs isochrone, significantly younger low mass stars exist and confirm earlier reports that star formation is still going on in the Rosette Nebula/NGC 2244 region.

Abstract Copyright: ∼

Journal keyword(s): galaxy - open clusters and associations: individual: NGC 2244 - stars: early-type - stars: late-type - stars: activity - stars: pre-main sequence - X-ray: stars

VizieR on-line data: <Available at CDS (J/A+A/384/890): table3.dat table3.tex>

Nomenclature: Table 3: [BC2002] NNN (Nos 1-138).

Simbad objects: 145

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Number of rows : 145
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 M 42 HII 05 35 17 -05 23.4           ~ 4073 0
2 NAME Ori A MoC 05 38 -07.1           ~ 3008 0
3 2MASS J06295929+0436402 X 06 29 59.3001581352 +04 36 40.177071792     18.25     ~ 2 0
4 2MASS J06301603+0454289 X 06 30 16.04 +04 54 28.9   16.85 15.63     ~ 1 0
5 NGC 2237 Cl* 06 30 36.10 +04 58 50.6           ~ 70 2
6 2MASS J06304061+0458037 * 06 30 40.6097874360 +04 58 03.793157472   17.36 16.43     ~ 1 0
7 2MASS J06304762+0503003 * 06 30 47.6225041584 +05 03 00.412213176   17.98 16.99     ~ 1 0
8 [BC2002] 6 X 06 30 53.7 +04 39 28           ~ 1 0
9 NGC 2244 9 * 06 30 54.4674668904 +04 58 27.372907452   13.8 13.27     ~ 4 0
10 NGC 2244 40 * 06 30 56.3070055944 +04 52 29.758345896   13.5 12.98     ~ 4 0
11 2MASS J06305746+0458520 * 06 30 57.4568827416 +04 58 52.098937680   17.15 15.68     ~ 4 0
12 [BC2002] 9 * 06 31 02.4375079800 +04 38 50.308387080   15.26 14.40     ~ 1 0
13 Cl* NGC 2244 CDZ 336 * 06 31 06.5820403824 +04 34 26.137957872   14.2 13.50     ~ 2 0
14 2MASS J06310804+0459300 Y*O 06 31 08.0415861864 +04 59 30.035119056   16.67 16.00   14.83 ~ 13 0
15 2MASS J06311476+0503520 * 06 31 14.7719695872 +05 03 52.110447984   17.82 17.07     ~ 1 0
16 [BC2002] 13 * 06 31 15.7673665632 +05 17 24.570162276   14.27 13.46     ~ 1 0
17 2MASS J06311881+0452089 Y*O 06 31 18.8178390192 +04 52 09.030868104 13.36 13.36 12.90 12.38 12.91 ~ 6 0
18 HD 46056 Y*O 06 31 20.8608343776 +04 50 03.842554740 7.60 8.36 8.16 8.16 8.09 O8Vn 226 0
19 2MASS J06312237+0453417 * 06 31 22.3820347368 +04 53 41.779830912   18.32 17.18     ~ 3 0
20 [BC2002] 17 X 06 31 25.8 +04 52 06           ~ 1 0
21 HD 258987 PM* 06 31 29.5026446880 +04 29 34.372452408   10.12 9.41     G5V 6 0
22 EM* GGA 395 Or* 06 31 29.7614837531 +04 54 49.143176800 13.196 11.72 11.41 11.94 11.97 B7Ve 36 0
23 HD 259012B Or* 06 31 33.1145177136 +04 50 35.468281896 12.714 12.891 12.304 12.44 11.717 B4/A1Ve 16 0
24 2MASS J06313386+0446272 Or* 06 31 33.8707121928 +04 46 27.175711080   18.79 17.12     ~ 6 0
25 2MASS J06313420+0449369 Y*O 06 31 34.2072057888 +04 49 36.916448844   18.34 16.86 15.71 14.96 ~ 7 0
26 HD 259013 * 06 31 36.0860760144 +04 47 45.610662084   10.39 9.81 10.05   F6IV 12 0
27 HD 46107 * 06 31 36.3223323840 +04 55 59.555262108   8.832 8.750     A1V 19 0
28 2MASS J06313642+0453137 Or* 06 31 36.4240810104 +04 53 13.827891840 20.210 20.05 17.713 16.30 15.21 ~ 11 0
29 HD 46106 Y*O 06 31 38.3968383096 +05 01 36.396422796 7.33 8.08 7.93 7.76 7.66 O9.7III(n) 156 0
30 NGC 2244 106 Or* 06 31 40.005048 +05 05 56.21712 14.501 12.868 11.909 11.666 11.782 G2 16 0
31 2MASS J06314070+0510264 X 06 31 40.7020293960 +05 10 26.450028948     18.72     ~ 1 0
32 2MASS J06314102+0454478 Or* 06 31 41.0227909392 +04 54 47.878060176 20.065 19.09 17.567 16.55 15.76 ~ 15 0
33 NGC 2244 126 Y*O 06 31 41.1237658218 +04 56 07.689869236 16.157 15.19 14.00 13.71 12.65 G4 19 0
34 2MASS J06314147+0446401 Y*? 06 31 41.4777927768 +04 46 40.206068868     17.76     ~ 2 0
35 NGC 2244 129 * 06 31 41.8593246240 +04 55 31.088702964   13.186 11.808     K4III 7 0
36 NAME Rosette OB Association As* 06 31.7 +04 58           ~ 144 0
37 2MASS J06314385+0502574 Or* 06 31 43.8582099264 +05 02 57.483843684 20.769 18.27 16.697 15.91 14.74 ~ 14 0
38 ATO J097.9328+05.0657 Y*O 06 31 43.8915427104 +05 03 56.512614924   18.56 17.48 16.41 15.69 ~ 6 0
39 2MASS J06314511+0451261 Y*O 06 31 45.1129038408 +04 51 26.214831432   20.34 19.06 17.61 16.70 ~ 9 0
40 2MASS J06314756+0449077 Or* 06 31 47.5610381472 +04 49 07.742935416 21.269 19.52 17.795 16.75 15.94 ~ 12 0
41 2MASS J06314769+0456497 Or* 06 31 47.6981669088 +04 56 49.803277560 22.630 19.48 18.141 16.77 15.91 ~ 16 0
42 Cl* NGC 2244 PS 122 * 06 31 47.77 +04 53 16.3   17.629 16.325     ~ 2 0
43 Cl* NGC 2244 PS 125 Or* 06 31 48.304 +04 58 19.82 19.073 18.02 16.77 14.66 14.54 ~ 8 0
44 2MASS J06314925+0457008 Or* 06 31 49.2560310096 +04 57 00.936459288 19.973 19.14 17.074 15.89 15.20 ~ 16 0
45 2MASS J06315002+0443088 * 06 31 50.0226144600 +04 43 08.845939416   17.40 16.24     ~ 3 0
46 ATO J097.9616+04.9096 Or* 06 31 50.7857074392 +04 54 34.720628724 20.544 18.24 17.100 16.09 15.40 ~ 16 0
47 2MASS J06315131+0444563 * 06 31 51.3174355800 +04 44 56.299698708   17.86 16.77     ~ 3 0
48 Cl* NGC 2244 PS 149 Or* 06 31 51.4124652816 +04 57 28.538360136 18.986 17.53 16.14 14.98 14.41 ~ 18 0
49 Cl* NGC 2244 PS 152 Y*O 06 31 51.6342093408 +04 51 24.076923300 19.902 18.26 16.71 15.58 14.73 ~ 9 0
50 2MASS J06315200+0454083 Y*O 06 31 52.0083758448 +04 54 08.371275588 21.720 20.05 18.48 17.23 15.96 ~ 13 0
51 NGC 2244 125 Y*O 06 31 52.5113994329 +04 56 15.030230904 12.646 12.280 12.032 11.56 11.59 B4V 20 0
52 HD 46149 Y*O 06 31 52.5319291296 +05 01 59.178678024 7.03 7.80 7.61 7.54 7.36 O8.5V 277 0
53 NGC 2244 119 Y*O 06 31 55.1127938870 +04 57 19.399962618 12.42 12.693 12.353 11.71 11.84 B6V 24 0
54 2MASS J06315525+0453299 Or* 06 31 55.2488635464 +04 53 29.928230952 20.869 18.72 17.805 16.39 15.53 ~ 10 0
55 HD 46150 Y*O 06 31 55.5205071744 +04 56 34.296516096 6.03 6.86 6.73 6.50 6.41 O5V((f))z 396 0
56 NGC 2244 182 Y*O 06 31 55.6549917264 +04 57 33.889228812 15.971 14.87 13.82 12.94 12.57 ~ 16 0
57 Cl* NGC 2244 PS 198 * 06 31 56.7830950368 +04 59 51.124131492   15.679 14.978     ~ 4 0
58 Cl* NGC 2244 PS 200 Or* 06 31 57.3013798800 +04 54 51.529081284 19.959 18.20 16.70 15.39 14.71 ~ 14 0
59 NGC 2244 181 Y*O 06 31 57.7516052928 +04 57 49.761163872 12.33 12.185 11.565 11.01 10.85 A5/F0 12 0
60 2MASS J06315781+0454165 Y*O 06 31 57.8165325216 +04 54 16.456550400 22.237 20.42 18.97 17.66 16.63 ~ 7 0
61 2MASS J06315803+0456374 X 06 31 58.0322465664 +04 56 37.535524692   17.95       ~ 1 0
62 Cl* NGC 2244 PS 222 Or* 06 32 00.3103752768 +05 00 41.940104328 18.61 17.63 16.19 15.22 14.48 ~ 12 0
63 V* V578 Mon Y*O 06 32 00.6076651296 +04 52 40.886334120 8.01 8.72 8.55 8.09 8.28 B0V+B1V 116 0
64 2MASS J06320117+0450489 Y*O 06 32 01.1770091472 +04 50 48.952469580   20.14 18.63 17.25 16.01 ~ 11 0
65 HD 259134 * 06 32 01.2648370608 +05 12 08.406868824   10.91 10.25     G0IV 8 0
66 [BC2002] 62 X 06 32 01.4502780360 +04 41 54.550682376     18.25     ~ 1 0
67 2MASS J06320183+0453386 Or* 06 32 01.8343716144 +04 53 38.640618384 20.959 19.58 18.179 16.64 15.44 ~ 14 0
68 Cl* NGC 2244 PS 236 Or* 06 32 02.0965290888 +04 48 55.468702512 18.725 17.26 15.93 14.88 14.34 ~ 21 0
69 Cl* NGC 2244 PS 235 Or* 06 32 02.1023153208 +04 56 47.162630940 19.238 17.85 16.48 15.83 14.72 ~ 17 0
70 Cl* NGC 2244 PS 237 Y*O 06 32 02.2292276256 +05 03 19.283027940 19.150 17.71 16.42 15.45 14.89 ~ 10 0
71 Cl* NGC 2244 PS 239 Y*O 06 32 02.5262925744 +04 50 11.076593208 18.178 16.80 15.54 14.58 14.04 ~ 11 0
72 2MASS J06320325+0500023 Y*O 06 32 03.2580899832 +05 00 02.365191828   18.92 17.60 16.65 15.66 ~ 4 0
73 2MASS J06320330+0514365 X 06 32 03.3052209840 +05 14 36.566173644   17.97 16.97     ~ 1 0
74 2MASS J06320405+0501337 X 06 32 04.0568209992 +05 01 33.759397092     17.51     ~ 1 0
75 Cl* NGC 2244 PS 256 Or* 06 32 04.7207637816 +04 49 14.844523908 19.330 17.89 16.50 15.41 14.83 ~ 13 0
76 [BC2002] 73 X 06 32 04.9 +04 57 49   18.23 17.31     ~ 1 0
77 2MASS J06320521+0448278 Y*O 06 32 05.2200463584 +04 48 27.907679592   18.41 17.00 16.19 15.54 ~ 7 0
78 Cl* NGC 2244 PS 258 Or* 06 32 05.4134837976 +04 56 59.323346232 18.712 17.07 15.68 14.55 14.03 ~ 13 0
79 NGC 2244 195 Y*? 06 32 05.5446312348 +04 55 13.323314522   12.448 12.151     B7V 15 0
80 Cl* NGC 2244 PS 262 * 06 32 05.5897885896 +04 50 18.445569324   17.903 16.611     ~ 4 0
81 LS VI +04 12 EB* 06 32 06.1360004063 +04 52 15.352618809 9.21 9.84 9.71     B1III 61 0
82 2MASS J06320669+0455305 Or* 06 32 06.6964932720 +04 55 30.610521156 20.675 18.20 17.011 15.88 15.04 ~ 10 0
83 NGC 2244 187 Or* 06 32 07.0902597768 +04 56 29.849169300 16.47 15.72 14.45 13.44 12.97 ~ 15 0
84 HD 46180A SB* 06 32 07.3336843632 +04 58 16.115386908 8.95 8.947 8.846 8.36 8.72 A3V 22 0
85 HD 46180 ** 06 32 07.44504 +04 58 16.4136           A2V+F4/5 19 0
86 2MASS J06320788+0446061 Y*O 06 32 07.8787071744 +04 46 06.254986116   18.82 17.62 16.40 15.51 ~ 3 0
87 HD 46223 Y*O 06 32 09.3068103600 +04 49 24.705695568 6.73 7.50 7.28 6.95 6.79 O4V((f)) 381 0
88 2MASS J06320959+0509011 * 06 32 09.5995948872 +05 09 01.240890660     18.27     ~ 2 0
89 Cl* NGC 2244 PS 301 Y*O 06 32 09.9769838448 +04 54 23.200150824 17.988 16.65 15.43 14.44 14.00 ~ 11 0
90 Cl* NGC 2244 PS 303 * 06 32 10.3187574043 +04 52 01.365932510   16.609 15.792     ~ 4 0
91 HD 46202 bC* 06 32 10.4706981304 +04 57 59.764912343 7.60 8.332 8.269 7.98 7.86 O9.2V 285 0
92 NGC 2244 OpC 06 32 10.8 +04 54 50           ~ 634 1
93 2MASS J06321341+0453302 X 06 32 13.42 +04 53 30.3   18.23 17.37     ~ 1 0
94 HD 259210 Er* 06 32 14.1957392928 +04 56 27.158545608 12.166 11.376 10.81 10.73 10.92 A1V 13 0
95 Cl* NGC 2244 PS 324 Or* 06 32 15.0208761144 +04 52 35.430831948 19.766 17.99 16.60 15.73 14.90 ~ 9 0
96 NGC 2244 194 Y*O 06 32 15.4828528224 +04 55 20.392268772 12.791 12.322 12.006 11.50 11.53 B6Vne 30 0
97 NGC 2244 257 Or* 06 32 15.8459052946 +04 54 30.065282282 17.093 15.50 14.25 13.25 12.76 G5 14 0
98 [BC2002] 92 X 06 32 16.4 +04 58 00           ~ 1 0
99 2MASS J06321645+0451332 X 06 32 16.4501235960 +04 51 33.279039972   16.42       ~ 1 0
100 NGC 2244 289 * 06 32 17.8620946512 +04 38 28.792479480 14.27 14.14 13.34 12.55 12.95 G2 8 0
101 2MASS J06321814+0501299 Y*O 06 32 18.1407437808 +05 01 29.936875908   20.35   18.93 17.54 ~ 6 0
102 2MASS J06321994+0448191 Y*O 06 32 19.9367187576 +04 48 19.221002604 16.759 15.56 14.38 13.35 12.95 ~ 13 0
103 2MASS J06322079+0452581 TT* 06 32 20.7874097688 +04 52 58.249894440 21.273 19.805 17.770 16.55 15.735 ~ 11 0
104 Cl* NGC 2244 PS 374 * 06 32 21.1791507154 +04 50 47.539812508   16.860 15.955 15.662   ~ 2 0
105 2MASS J06322183+0447209 X 06 32 21.8345072592 +04 47 21.019164432   17.92 17.04     ~ 1 0
106 Cl* NGC 2244 PS 384 * 06 32 22.6613744496 +05 00 47.521274220   17.683 16.331     ~ 2 0
107 2MASS J06322311+0449431 Or* 06 32 23.1091050816 +04 49 43.272137604 22.014 19.818 17.585 16.37 15.352 ~ 10 0
108 2MASS J06322442+0452225 Y*O 06 32 24.4162751616 +04 52 22.646621964 17.35 16.68 15.46 14.45 13.96 ~ 9 0
109 2MASS J06322484+0457462 Y*O 06 32 24.8433773184 +04 57 46.321017948 16.411 15.20 14.31 13.56 13.33 ~ 10 0
110 2MASS J06322495+0455362 Y*O 06 32 24.95 +04 55 36.2           ~ 2 0
111 2MASS J06322511+0447396 Y*O 06 32 25.1094822888 +04 47 39.696979380 19.137 17.44 16.15 15.10 14.59 ~ 6 0
112 2MASS J06322602+0509434 X 06 32 26.0301531192 +05 09 43.238709648           ~ 1 0
113 NAME Rosette Nebula HII 06 32 26.76 +04 47 37.1           ~ 492 1
114 [BC2002] 107 X 06 32 27.6 +05 00 14           ~ 1 0
115 Cl* NGC 2244 PS 429 Y*O 06 32 28.0768798201 +04 54 03.744009627 16.777 15.66 14.57 13.70 13.29 ~ 17 0
116 HD 259300 Y*O 06 32 29.3911958568 +04 56 56.096456676 11.546 11.08 10.76 10.33 10.34 B3Vp 40 0
117 Cl* NGC 2244 PS 444 Y*O 06 32 29.7156248003 +05 01 34.330716925 19.587 17.85 16.45 15.31 14.76 ~ 10 0
118 NGC 2244 273 V* 06 32 30.9008451192 +04 47 53.858258052 15.742 14.56 13.64 12.86 12.68 ~ 8 0
119 Cl* NGC 2244 PS 460 * 06 32 30.9833219832 +04 49 08.931908892   17.182 16.215     ~ 2 0
120 NGC 2244 269 Or* 06 32 31.0128123096 +04 50 05.882570160 16.519 15.52 14.48 13.40 13.20 ~ 16 0
121 2MASS J06323143+0442339 Y*O 06 32 31.4391098424 +04 42 34.031707344 17.916 15.92 14.56 13.49 12.54 ~ 5 0
122 Cl* NGC 2244 PS 469 Or* 06 32 31.5919407168 +04 55 25.024878048 20.036 18.953 16.974   14.995 ~ 5 0
123 2MASS J06323284+0513494 X 06 32 32.8477522560 +05 13 49.495236204   17.95 16.38     ~ 1 0
124 2MASS J06323287+0457123 Y*O 06 32 32.8684380840 +04 57 12.362486400 15.798 15.01 14.29 13.60 13.49 ~ 9 0
125 NGC 2244 278 * 06 32 33.2041388832 +04 44 53.320251264   11.36 10.39 10.20   K5 5 0
126 1RXP J063235.0+043326 Y*? 06 32 34.3997412906 +04 33 19.359213132   14.2 13.69     G0V 7 0
127 Cl* NGC 2244 PS 495 * 06 32 34.7323525224 +04 52 54.395894676   16.874 16.030     ~ 3 0
128 Cl* NGC 2244 PS 520 * 06 32 38.3268775968 +05 04 34.436140428   16.191 15.258     ~ 3 0
129 Cl* NGC 2244 PS 529 * 06 32 39.1789209216 +05 02 49.448176872   15.641 14.854     ~ 3 0
130 2MASS J06324165+0451518 X 06 32 41.6664060840 +04 51 51.896868192   18.54 17.56     ~ 1 0
131 2MASS J06324411+0447580 Y*O 06 32 44.1131256312 +04 47 58.099504560 17.27 16.64 15.41 14.42 13.90 ~ 8 0
132 Cl* NGC 2244 PS 570 Y*O 06 32 44.4531320496 +05 03 09.686927268   16.758 15.547     ~ 8 0
133 Cl* NGC 2244 PS 572 * 06 32 45.0493774224 +04 55 55.262655948   18.476 16.959     ~ 4 0
134 2MASS J06324902+0445330 Y*O 06 32 49.0243357776 +04 45 33.088018968   19.21 17.81 16.46 15.62 ~ 7 0
135 2MASS J06325430+0442532 Y*O 06 32 54.3086232648 +04 42 53.258130828   17.54 16.44 15.29 14.72 ~ 7 0
136 2MASS J06325757+0503540 * 06 32 57.5698596048 +05 03 54.020548188   15.32 14.96     ~ 2 0
137 2MASS J06325781+0455398 * 06 32 57.8071213224 +04 55 39.816309936   18.73 17.55     ~ 4 0
138 2MASS J06325920+0447562 * 06 32 59.1999264192 +04 47 56.239434348   15.22 14.68     ~ 2 0
139 NGC 2244 357 * 06 33 05.1364015512 +04 54 42.037304256   14.6 13.68     ~ 4 0
140 2MASS J06330667+0451237 * 06 33 06.6713088960 +04 51 23.823488844   16.69 15.49     ~ 2 0
141 Cl* NGC 2244 CDZ 348 Y*O 06 33 09.6043306142 +04 46 24.383593248 14.70 14.14 12.94 11.92   ~ 12 0
142 2MASS J06331284+0434589 Y*O 06 33 12.8473597680 +04 34 58.943862048   20.16 18.00   15.17 ~ 6 0
143 Cl* NGC 2244 CDZ 406 Y*O 06 33 27.5116315032 +04 35 57.213104712   15.12 13.36   13.25 K1 6 0
144 HD 259635 * 06 33 30.0956920128 +05 02 03.217501284   10.50 9.74     G8V 9 0
145 HD 46485 Y*O 06 33 50.9566745256 +04 31 31.613196504 7.92 8.60 8.27   8.10 O7V((f))nzvar? 150 0

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