2007A&A...461..565M

Query : 2007A&A...461..565M

2007A&A...461..565M - Astronomy and Astrophysics, volume 461, 565-569 (2007/1-2)

Low-excitation blobs in the Magellanic Clouds.

MEYNADIER F. and HEYDARI-MALAYERI M.

Abstract (from CDS):

We study an unknown, or very poorly known, interstellar HII component in the Magellanic Clouds. This is the first study ever devoted to this class of objects, which we call low-excitation blobs (LEBs). We used low-dispersion spectroscopy carried out at ESO to obtain emission line intensities of Hα, Hβ, and [OIII] (λλ4959+5007) for 15 objects in the Large Magellanic Cloud and 14 objects in the Small Magellanic Cloud.
Result. are displayed in excitation ([OIII]/Hβ ratio) versus Hβ luminosity diagrams. We show the presence of an LEB component in the Magellanic Clouds and study its relationship with the already known class of high-excitation blobs (HEBs). The newly found LEBs are lower excitation counterparts of HEBs and are powered by less massive exciting stars. Further study of LEBs is expected to provide new pieces of information for a better understanding the low mass end of the upper initial mass function in the Magellanic Clouds.

Abstract Copyright: ∼

Journal keyword(s): stars: early-type - galaxies: Magellanic Clouds - ISM: HII regions

CDS comments: Paragraph 4 LHA 120-N 105A-IR not identified.

Simbad objects: 46

Full paper

View the references in ADS

Number of rows : 46

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2023	#notes
1	LHA 115-N 1	PN	00 23 58.6295947968	-73 38 03.974747928						~	46	0
2	LHA 115-N 9	PN	00 43 36.6894984096	-73 02 26.704240836		14.66	14.4	15.87	15.35	O3-4	38	0
3	LHA 115-N 10	Y*O	00 44 56.578	-73 10 10.52		14.66	15.1	15.96		B0	40	1
4	LHA 115-N 11	EmO	00 45 02.90	-73 16 40.0		14.36				~	19	0
5	LHA 115-N 21	Em*	00 47 48	-73 17.4			14.8			~	27	0
6	LHA 115-N 26	PN	00 48 08.624	-73 14 54.62	14.70	15.22	14.31		14.57	~	56	1
7	LHA 115-N 29	PN	00 48 36.526	-72 58 00.91	17.72	16.60	16.12	16.5	16.44	~	49	0
8	LHA 115-N 31	Y*O	00 48 41.869	-73 26 15.17		14.92	15.1	15.27	15.60	B0	27	0
9	LHA 115-N 33	Em*	00 49 29.32080	-73 26 34.7208		16.28	15.92	15.74	14.70	O6.5-7V	22	0
10	LHA 115-N 32	Y*O	00 49 39.4	-72 48 47						~	28	0
11	LHA 115-N 47	PN	00 51 58.311	-73 20 31.87			16.158		16.17	~	48	0
12	LHA 115-N 45	Cl*	00 52 01.7	-73 13 19		14.24				~	30	0
13	NAME SMC	G	00 52 38.0	-72 48 01		2.79	2.2			~	10600	1
14	LHA 115-N 61	HII	00 57 29.96	-72 32 24.0		14.78	14.6			~	26	0
15	LHA 115-N 64	Em*	00 58 24.5	-72 39 59		14.34	14.4			~	12	0
16	LHA 115-N 68	PN	00 58 42.86	-72 27 16.7		15.71	15.3		18.920	~	23	0
17	LHA 115-N 70	PN	00 59 16.1329481088	-72 01 59.841527196		16.07	16.016		16.916	~	45	0
18	LHA 115-N 75	Em*	01 02 28.6	-71 56 34			15.3			~	12	0
19	DEM S 117	SFR	01 02 49.0	-71 53 13						~	24	0
20	LHA 115-N 73	Sy*	01 04 39.3063007080	-75 48 24.764931288				15.52	13.88	K0/2e	20	0
21	HD 7113	Em*	01 09 12.94464	-73 11 38.8968			11.7			~	120	0
22	LHA 115-N 88A	HII	01 24 07.823	-73 09 03.77		13.25	12.18			~	72	1
23	NAME Magellanic Clouds	GrG	03 00	-71.0						~	6630	1
24	Brey 3a	WR*	04 53 30.0791072664	-69 17 49.385662368	13.000	14.398	14.267	14.79	12.791	WC9	37	0
25	LHA 120-N 83B	HII	04 54 25.2	-69 11 00						~	47	1
26	LHA 120-N 88	EmO	04 54 52	-69 23.4						~	8	0
27	LHA 120-N 90	EmO	04 55 25	-69 16.1						~	15	0
28	IRAS 04571-6627	mul	04 57 15.5	-66 23 14						~	52	1
29	HD 32340	Em*	04 57 16.253	-66 23 20.94		13.11	12.45	14.00		O3-O6V	77	0
30	HD 33540	*	05 04 38.1113422584	-70 54 41.848525116		12.73	12.74	13.89	13.48	O/B2:e	39	0
31	LHA 120-N 105A	HII	05 09 34.3	-68 53 45						~	53	1
32	HD 269211	Em*	05 12 30.1799582352	-70 24 22.255615476		13.26	13.62			~	23	0
33	NGC 1895	Cl*	05 16 53.4	-67 19 51			12.93			~	27	0
34	LHA 120-N 197	EmO	05 20 54.5	-71 43 17						~	11	0
35	NAME LMC	G	05 23 34.6	-69 45 22			0.4			~	16636	1
36	LHA 120-N 68	EmO	05 34 37.5	-68 12 37						~	9	0
37	M 42	OpC	05 35 17	-05 23.4						~	3982	0
38	LHA 120-N 156	EmO	05 37 40	-69 34.4						~	6	0
39	NAME Ori A	MoC	05 38	-07.1						~	2913	0
40	[JHS86] N160A-9	HII	05 39 43.3	-69 38 51						~	23	0
41	NAME N159 Blob in LMC	HII	05 40 04.2	-69 44 43						~	38	0
42	LHA 120-N 177	HII	05 41 34.5	-70 01 19						~	7	0
43	LBN 196.49-01.60	HII	06 14 38.40	+13 49 44.7						~	164	1
44	RCW 34	HII	08 56 28.1	-43 05 58		10.5	11.21			~	95	0
45	SH 2-152	HII	22 58 40.8107767416	+58 46 59.226036024						~	137	1
46	IC 1470	HII	23 05 09.9	+60 14 31		11.5				~	169	1

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