2002A&A...393..195M


Query : 2002A&A...393..195M

2002A&A...393..195M - Astronomy and Astrophysics, volume 393, 195-204 (2002/10-1)

Pre-main-sequence stars in the young open cluster NGC 1893. I. A spectroscopic search for candidates in the area photometrically surveyed.

MARCO A. and NEGUERUELA I.

Abstract (from CDS):

We present low-resolution spectroscopy of the majority of the stars in the field of NGC 1893 which were classified as non-members based on the photometry of Marco et al. (2001AJ....121.2075M). We separate field stars from pre-main-sequence members based on a combination of spectral type and photometric indices which allows us to determine the reddening to the objects. For candidates to pre-main-sequence objects, we present intermediate-resolution spectra. We confirm 3 F-type emission-line objects as massive T Tauri stars in NGC 1893 and find two good candidates for being absorption-line Herbig A stars. A B5 star is a very good candidate for an absorption-line Herbig B star. We also investigate the nature of emission-line B-type stars close to the cluster centre. Available evidence suggests that both classical Be stars and Herbig Be stars are present in NGC 1893.

Abstract Copyright:

Journal keyword(s): open clusters and associations: individual: NGC 1893 - stars: pre-main sequence - stars: emission line, Be - stars: early-type

Nomenclature: Paragr.4.1.5: CL* NGC 1893 CUF NNNN (No. 5003) added.

Simbad objects: 32

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Number of rows : 32
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 HD 16959 * 02 42 21.2352514764 -28 34 30.631196364   9.24 8.73     F7/8V 12 0
2 * o Per * 03 42 22.6455526 +33 57 54.089323 4.13 4.912 4.972     B0.5V 284 0
3 * q Tau * 03 45 12.4957802 +24 28 02.209730 3.73 4.19 4.30 4.30 4.40 B6IV 262 0
4 IC 410 Cl* 05 22.0 +33 29           ~ 54 0
5 HD 242908 Y*O 05 22 29.3024325107 +33 30 50.452464350 8.6 9.280 9.084 9.241   O4.5V(n)((fc))z 116 0
6 Cl* NGC 1893 CUF 4212 * 05 22 30.545 +33 29 25.38   15.47 15.25     F7V 3 0
7 2MASS J05223901+3326270 Y*O 05 22 39.0086162465 +33 26 27.034045355   13.72 13.15   12.422 B8V 12 0
8 HD 242926 Y*O 05 22 40.0952905623 +33 19 09.406349570 9.04 9.65 9.40     O7Vz 79 0
9 2MASS J05224076+3321379 Y*O 05 22 40.7656895220 +33 21 37.950190657   15.95 15.238   13.782 A9V 4 0
10 Cl* NGC 1893 CUF 3109 * 05 22 40.7740606392 +33 24 44.857489748 16.75 16.66 15.96     ~ 4 0
11 NGC 1893 35 Be* 05 22 43.0136814770 +33 25 05.418862320 14.04 14.24 13.585   12.376 B1Ve 21 0
12 BD+33 1025 Y*O 05 22 43.9987492062 +33 26 26.653620952 9.84 10.37 10.28   9.904 O7.5V(n)z 35 0
13 NGC 1893 OpC 05 22 44 +33 24.7   7.90 7.5     ~ 238 0
14 [MJD95] J052246.08+332458.0 Y*? 05 22 46.0868599134 +33 24 57.796186879   13.68 13.914 13.657 13.327 B1.5Ve 10 0
15 2MASS J05224637+3324085 Y*O 05 22 46.3709468344 +33 24 08.598751534   15.19 14.704 14.124 13.462 F2V 5 0
16 HD 242935 ** 05 22 46.541232 +33 25 11.34300 8.9     9.608   O7.5V((f)) 68 0
17 Cl* NGC 1893 CUF 3207 Y*O 05 22 46.6029571583 +33 24 12.998632991   14.75 14.340 13.965 13.494 A9V 8 0
18 Cl* NGC 1893 CUF 4228 * 05 22 46.8234037192 +33 30 58.923597055   15 13.286     K0V 3 0
19 [MJD95] J052248.22+332500.3 Y*O 05 22 48.236 +33 25 00.48   15.76 15.398 14.746 13.962 G0:Ve 6 0
20 Cl* NGC 1893 CUF 2116 Y*O 05 22 51.0342102219 +33 25 47.128069696     15.173 14.766 13.996 F7:Ve 12 1
21 LS V +33 21 Em* 05 22 52.2228554305 +33 23 03.446703040 10.98 11.58 11.50 11.55 11.183 B1III 25 0
22 [MJD95] J052252.21+332958.3 Y*O 05 22 52.2260303338 +33 29 58.035307993   15.65 15.242 14.516 13.794 F6:Ve 8 0
23 2MASS J05225376+3331506 Y*O 05 22 53.7612867693 +33 31 50.689999403   14.48 14.018 13.485 13.022 A2IV 6 0
24 SIM 130 ISM 05 22 55.0 +33 31 57           ~ 16 0
25 Cl* NGC 1893 CUF 5001 * 05 22 57.7 +33 26 03     15.116     G1V 2 0
26 SIM 129 ISM 05 23 08.0 +33 28 50           ~ 14 0
27 LS V +34 15 * 05 27 23.2957273015 +34 23 40.538400034 9.76 10.31 10.06     O5.5V((f)) 12 0
28 Ass Aur OB 2 As* 05 28 +34.9           ~ 44 0
29 HD 36959 Y*O 05 35 01.0063388388 -06 00 33.371107627 4.52 5.33 5.53     B1.2 195 0
30 * tet Leo PM* 11 14 14.4044630 +15 25 46.454086 3.40 3.33 3.35 3.32 3.34 A2IV 316 0
31 HD 124752 ** 14 12 27.04957 +67 35 10.1661           K0-V+M2V 54 0
32 Cl* NGC 1893 CUF 5003 * ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.07.30-10:17:45

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