2002MNRAS.329..481B

Query : 2002MNRAS.329..481B

2002MNRAS.329..481B - Mon. Not. R. Astron. Soc., 329, 481-496 (2002/January-3)

Narrow-band CCD photometry of giant H II regions.

BOSCH G., TERLEVICH E. and TERLEVICH R.

Abstract (from CDS):

We have obtained accurate CCD narrow-band Hβ and Hα photometry of giant Hii regions (GEHRs) in M33, NGC 6822 and M101. Comparison with previous determinations of emission-line fluxes shows large discrepancies; their probable origins are discussed. Combining our new photometric data with global velocity dispersion (σ) derived from emission linewidths, we review the L(Hβ)-σ relation. A re-analysis of the properties of the GEHRs included in our sample shows that age spread and the superposition of components in multiple regions introduce a considerable spread in the regression. Combining the information available in the literature regarding ages of the associated clusters, evolutionary footprints on the interstellar medium, and kinematical properties of the knots that build up the multiple GEHRs, we find that a subsample - which we refer to as young and single GEHRs - do follow a tight relation in the L-σ plane.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): Hii regions - galaxies: individual: NGC 6822 - galaxies: individual: M33 - galaxies: individual: M101 Hii - galaxies: star clusters

Nomenclature: Fig.22: [BTT2002] NGC 5447 A (Nos A-C). Fig.24: [BTT2002] NGC 5462 A (Nos A-E).

CDS comments: Fig.23: [MGC95] NGC 5461 A to E. Fig.25: [S85b] A to E, A'.

Simbad objects: 40

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Number of rows : 40

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	NGC 588	HII	01 32 45.2	+30 38 54	14.59	14.40	14.44	14.89	15.16	~	126	1
2	VGHC 2-22	HII	01 33 12.188	+30 38 47.14						~	81	0
3	NGC 595	HII	01 33 33.53	+30 41 29.8						~	213	0
4	M 33	GiG	01 33 50.8965749232	+30 39 36.630403128	6.17	6.27	5.72			~	6226	1
5	NGC 604	HII	01 34 32.1	+30 47 01						~	608	0
6	NAME LMC	G	05 23 34.6	-69 45 22			0.4			~	19090	0
7	RMC 136	Cl*	05 38 42.396	-69 06 03.36		5.81	5.40			~	2236	2
8	NGC 4449	EmG	12 28 11.118	+44 05 36.81	10.11	9.98	9.64	9.45		~	1192	1
9	NGC 5447	HII	14 02 28.0	+54 16 34						~	73	0
10	NGC 5455	H2G	14 03 01.17	+54 14 29.4						~	105	0
11	M 101	GiP	14 03 12.583	+54 20 55.50		8.46	7.86	7.76		~	3138	2
12	NGC 5461	HII	14 03 40.96	+54 19 02.4						~	195	0
13	NGC 5462	HII	14 03 53.0997760440	+54 22 06.493306404						~	85	0
14	NGC 5471	EmG	14 04 28.627	+54 23 52.84						~	250	1
15	CXOU J140429.1+542353	SNR	14 04 29.1	+54 23 53						~	37	0
16	NGC 5471A	HII	14 04 29.50	+54 23 47.1						~	22	0
17	BD+33 2642	pA*	15 51 59.8854348048	+32 56 54.329485272	9.806	10.61	10.73	10.884	10.961	O7p	456	0
18	[H77] HII 2	HII	19 44 31.79	-14 41 57.0		15				~	34	0
19	MCG-02-50-003	HII	19 44 34.38	-14 42 20.3						~	36	0
20	NGC 6822	G	19 44 56.199	-14 47 51.29		18	8.1			~	1661	0
21	BD+28 4211	HS*	21 51 11.0221915656	+28 51 50.367627468	8.922	10.25	10.58	10.656	10.831	sdO2VIIIHe5	837	0
22	Feige 110	HS*	23 19 58.3996844256	-05 09 56.171142864	10.360	11.45	11.50	11.970	12.145	sdO8VIIIHe5	673	1
23	[BTT2002] NGC 5447 C	PoC	~	~						~	1	0
24	[BTT2002] NGC 5447 B	PoC	~	~						~	1	0
25	[BTT2002] NGC 5447 A	PoC	~	~						~	1	0
26	[MGC95] NGC 5461 E	PoC	~	~						~	2	0
27	[MGC95] NGC 5461 D	PoC	~	~						~	2	0
28	[MGC95] NGC 5461 C	PoC	~	~						~	2	0
29	[MGC95] NGC 5461 B	PoC	~	~						~	2	0
30	[MGC95] NGC 5461 A	PoC	~	~						~	2	0
31	[S85b] A'	PoC	~	~						~	3	0
32	NGC 5471E	HII	~	~						~	7	0
33	NGC 5471D	HII	~	~						~	16	0
34	[BTT2002] NGC 5462 D	PoC	~	~						~	1	0
35	NGC 5471C	HII	~	~						~	17	0
36	[BTT2002] NGC 5462 E	PoC	~	~						~	1	0
37	NAME Local Group	GrG	~	~						~	9325	0
38	[BTT2002] NGC 5462 C	PoC	~	~						~	1	0
39	[BTT2002] NGC 5462 B	PoC	~	~						~	1	0
40	[BTT2002] NGC 5462 A	PoC	~	~						~	1	0

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