2002MNRAS.336.1287L

Query : 2002MNRAS.336.1287L

2002MNRAS.336.1287L - Mon. Not. R. Astron. Soc., 336, 1287-1292 (2002/November-2)

A search for star formation around the Galactic halo B-type star PHL 346 with the 2dF spectrograph.

LYNN B.B., DUFTON P.L., KEENAN F.P., HAMBLY N.C., IRWIN M.J., GILMORE G. and ROLLESTON W.R.J.

Abstract (from CDS):

A preliminary search for stars that may have formed coevally with the apparently young halo B-type star PHL 346 has been performed with the 2dF multifibre spectrograph on the Anglo-Australian Telescope (AAT). Candidates were selected for spectroscopy from APM scans of B and R Schmidt plates centred on PHL 346. A total of 476 stars of spectral type A or F were found; radial velocity estimates and more accurate spectral type assignments narrowed the number of possible coeval candidates to 6 A-type and 14 F-type stars. A statistical analysis of these results using a comparison with a control field suggests that the number of A-type or F-type candidate stars around PHL 346 is not unexpected, and that they need not be associated with PHL 346. A number of ways to improve the project are suggested.

Abstract Copyright: RAS

Journal keyword(s): stars: early-type - stars: formation - stars: individual: PHL 346 - stars: kinematics - Galaxy: halo.

Nomenclature: Tables 3, 4: [LDK2002] F-NNN N=19. Table 5: [LDK2002] CTRLNNN N=8.

Simbad objects: 28

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Number of rows : 28
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 [LDK2002] CTRL090 * 22 24 43.1992223256 -24 29 47.728330620           A5V: 1 0
2 [LDK2002] CTRL097 * 22 25 38.5860851832 -24 23 54.454245000           F5V 1 0
3 [LDK2002] CTRL091 * 22 26 57.9547748088 -24 29 21.648407424           F5V 1 0
4 [LDK2002] CTRL092 * 22 26 58.2787218768 -24 28 28.279837668           F6V 1 0
5 [LDK2002] 7-109 * 22 27 31.0899567144 -17 35 34.233039456           F8V: 1 0
6 [LDK2002] CTRL002 * 22 28 39.3448918920 -25 37 55.034892552           F2V 1 0
7 [LDK2002] CTRL086 * 22 28 56.6703085368 -24 31 42.450507948           F2V 2 0
8 [LDK2002] CTRL143 * 22 29 31.6715951904 -23 56 14.676179604           F2V 1 0
9 [LDK2002] 6-008 * 22 29 39.6560126928 -18 41 48.238599552           F6V 1 0
10 [LDK2002] 6-054 * 22 30 13.9922974944 -19 13 38.544935592           F6V: 1 0
11 [LDK2002] 6-003 * 22 31 03.8538687072 -18 34 53.731793856           F6V 1 0
12 HE 2228-1859 HB* 22 31 25.0639613304 -18 43 44.636457000   16.2 16.2     F0V 3 0
13 [LDK2002] 6-082 * 22 31 40.2009045264 -19 27 07.872288840           F0V: 1 0
14 [LDK2002] 6-036 * 22 32 26.2624068744 -19 07 34.110449976           F5V 1 0
15 [LDK2002] CTRL051 * 22 32 32.0391407136 -24 51 54.197163108           F2V 1 0
16 [LDK2002] 6-128 * 22 32 32.8134664656 -19 48 55.184768028           F6V 1 0
17 [LDK2002] 6-154 * 22 33 37.8211165200 -20 04 56.765630748           F2V: 2 0
18 [LDK2002] 7-208 * 22 33 57.6782758656 -18 10 49.363274964           F8V 1 0
19 [LDK2002] 2-054 * 22 34 04.2916197724 -16 46 00.090141302           A7V 2 0
20 2MASS J22362012-1712067 * 22 36 20.1266087592 -17 12 06.816595932           A0V: 2 0
21 [LDK2002] 1-028 * 22 36 23.0431339296 -18 03 43.901434980           F5V 1 0
22 [LDK2002] 5-017 * 22 36 27.8395605000 -19 38 07.188963252           F2V 1 0
23 [HWK96] 603-84 * 22 36 46.7 -17 21 53           A7V: 2 0
24 HE 2234-2101 HB* 22 37 10.5227739960 -20 45 28.549720296   15.5 15.5     A7V: 3 0
25 V* HN Aqr bC* 22 37 38.2846689672 -18 39 51.268772880   11.293 11.426 11.813   B 70 0
26 [LDK2002] 2-067 * 22 37 59.5677339336 -16 56 32.867334132           F2V 1 0
27 [LDK2002] 1-060 * 22 38 53.9558929464 -18 27 05.713844472           F8V 1 0
28 [LDK2002] 2-055 * 22 39 58.9414078752 -16 46 34.747634028           A5V: 1 0

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