2020MNRAS.493..497R

Query : 2020MNRAS.493..497R

2020MNRAS.493..497R - Mon. Not. R. Astron. Soc., 493, 497-517 (2020/March-3)

Unveiling Vela - variability of interstellar lines in the direction of the Vela supernova remnant - III. Na D and Ca II K.

RAO N.K., LAMBERT D.L., REDDY A.B.S., GUPTA R., MUNEER S., VARGHESE B. and SINGH H.P.

Abstract (from CDS):

High-resolution optical spectra were obtained in 2017-2019 with The Southern African Large Telescope of 15 stars in the direction of the Vela supernova remnant. Interstellar Ca II H & K and Na I D lines are discussed in this paper. In particular, the line profiles are compared with profiles at a comparable spectral resolution obtained in 1993-1996 by Cha and Sembach. Ten of the lines of sight show changes to one or more of the components in that line of sight. Changes include small changes (1-2 km s-1) in radial velocity and/or increases/decreases in equivalent width over the two decades between the periods of observation. Changes are more obvious in the Ca K line than in the Na D lines. These changes are attributed to gas disturbed by interactions between the supernova ejecta and the surrounding interstellar medium. A representative time-scale may be 20-50 yr. Small-scale variations in line profiles across the face of the remnant suggest, as previously remarked, that a linear scale for interactions is a small fraction of the 40 pc size of the present remnant.

Journal keyword(s): ISM: lines and bands - ISM: supernova remnants

Simbad objects: 73

Full paper

View the references in ADS

Number of rows : 73

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	* 228 Eri	Be*	04 29 06.9254098152	-13 02 54.127769208	4.45	5.23	5.41	5.46	5.63	B2(V)ne	286	0
2	V* AE Aur	Or*	05 16 18.1493304816	+34 18 44.344404000	5.48	6.18	5.96			O9.5V	597	1
3	* del Ori A	SB*	05 32 00.398192	-00 17 56.68527						O9.5II+B1V+B0IV	35	0
4	HD 63578	Y*O	07 47 31.5055471560	-46 36 30.563725932		5.053	5.208			B2III	104	0
5	HD 65814	*	07 58 50.4336026520	-40 20 34.648928304		9.05	8.77			B2III	9	0
6	* gam01 Vel	Y*O	08 09 29.3175369840	-47 20 43.013412312		3.995	4.173			B2III	158	0
7	* gam02 Vel	WR*	08 09 31.95013	-47 20 11.7108	0.64	1.58	1.83	1.85	2.00	WC8+O7.5III-V	951	0
8	HD 68217	Pu*	08 09 35.9137276680	-44 07 21.962716896		5.010	5.183			B2IV	77	0
9	V* IS Vel	bC*	08 09 43.1541985440	-47 56 13.890437304	4.12	5.017	5.217			B2V	98	1
10	V* NO Vel	SB*	08 13 36.1528771104	-46 59 29.862036384	4.32	4.981	5.127			B3III	90	0
11	HD 69302	**	08 14 23.8746718618	-45 50 04.250534667	4.84	5.661	5.836			B2IV	82	0
12	HD 70309	*	08 19 05.5846724208	-48 11 52.269791604	5.67	6.30	6.44			B3III	52	0
13	* B Vel	SB*	08 22 31.69411	-48 29 25.3631	3.83	4.67	4.82	4.86	4.99	B2III	90	0
14	HD 71302	**	08 24 57.20672	-42 46 11.4071	5.29	5.90	6.02			B3V	67	0
15	HD 71459	*	08 25 51.9104833344	-42 09 11.070430416	4.71	5.27	5.42			B3/5IV	63	0
16	HD 71609	Pu*	08 26 38.1571034544	-43 24 30.947105448	7.26	7.89	7.82	8.76		B2/3II	54	0
17	HD 72014	Be*	08 28 52.0606957392	-42 35 14.916463440	5.22	6.408	6.588	7.51		B1/2(V)nne	68	0
18	* 33 Vel	**	08 29 04.75211	-47 55 44.1201						B1.5V+B4V	71	0
19	HD 72089	*	08 29 06.9713523240	-45 33 26.963586252		7.93	8.02			B5II/III	40	0
20	HD 72067	Be*	08 29 07.56710	-44 09 37.4914	4.99	5.67	5.84			B2/3V	108	0
21	HD 72088	*	08 29 12.6382293096	-44 53 05.519444712	8.62	9.10	9.07			B3III/IV	31	0
22	HD 72127	**	08 29 27.48346	-44 43 29.3236	4.04	4.95	5.15	6.59		B3III/IV	86	0
23	HD 72127A	Pu*	08 29 27.485	-44 43 29.35		5.01	5.19			B2IIIk	19	0
24	HD 72179	*	08 29 37.7367266616	-44 05 57.919153164	7.48	8.02	8.14			B3/5II/III	28	0
25	HD 72232	*	08 29 45.6347536464	-46 19 54.115451688	5.27	5.838	5.969			B5III	52	0
26	HD 72350	SB*	08 30 39.2288732472	-44 44 14.346383532	5.80	6.26	6.29			B3IV	81	0
27	HD 72485	Pu*	08 31 10.6253806200	-47 51 59.831879076	5.57	6.223	6.373			B2/3V	62	0
28	HD 72555	Y*O	08 31 39.6446319360	-47 14 27.720018636		6.625	6.773			B2V	40	0
29	HD 72535	**	08 31 47.529	-42 01 59.90		8.94	8.84	9.06		B2III	14	0
30	HD 72648	*	08 32 18.9890145000	-43 55 53.360572260	7.15	7.75	7.62			B3III(II)	62	0
31	HD 72800	*	08 32 53.7760055760	-47 36 19.849809528	6.45	6.700	6.599	7.63		B9Ib	39	0
32	HD 72798	*	08 33 01.8593584728	-45 45 10.456626816		6.229	6.354			B3III	39	0
33	NAME Vela	SNR	08 34.0	-45 50						~	1331	2
34	V* V451 Vel	EB*	08 34 08.1440482200	-44 32 41.397363780		7.28	7.46			B2II/III	42	0
35	NAME Vela Pulsar	Psr	08 35 20.65525	-45 10 35.1545			15.10			~	2446	1
36	HD 73326	*	08 36 02.2364091288	-46 30 05.874974424	6.5	7.231	7.272			B2III/IV	32	0
37	HD 73658	Em*	08 37 39.9551938368	-46 16 57.745322112	6.20	6.89	6.86	7.75		B1Ib/II	57	0
38	HD 74194	HXB	08 40 47.7915253032	-45 03 30.235569624	7.05	7.77	7.55	8.70		O8.5Ib-II(f)p	220	0
39	HD 74234	*	08 40 53.3997843792	-48 13 31.819450188	5.942	6.777	6.926		6.725	B2IV	59	0
40	HD 74251	*	08 41 01.5722454696	-48 04 02.928003204		7.65	7.74			B3IV/V	39	0
41	HD 74273	bC?	08 41 05.3198654376	-48 55 21.652130928	4.77	5.695	5.879			B2III	96	0
42	HD 74319	*	08 41 34.9044234312	-44 59 30.890980968		6.576	6.685			B3V	30	0
43	HD 74478	*	08 41 49.1680860600	-54 57 59.604618816		9.89	9.88			B9II/III(pSi)	11	0
44	HD 74371	s*b	08 41 56.9097314184	-45 24 38.562399648	4.94	5.378	5.227	6.75		B6Iab/b	98	0
45	HD 74436	SB*	08 42 07.5550200312	-48 14 40.801686432	7.952	8.244	9.827	9.155	8.171	B3V	44	0
46	HD 74455	**	08 42 16.1925159528	-48 05 56.748130241	4.39	5.288	5.468	7.877	7.074	B2/3IV/V	125	0
47	HD 74531	*	08 42 34.8368708016	-48 09 48.916929528	6.21	7.08	7.23			B2(V)	53	0
48	HD 74530	*	08 42 36.5453576640	-48 04 30.865902780	8.048	8.439	8.504	8.653	8.600	B3IV/V	26	0
49	HD 74650	*	08 43 16.6648967472	-47 48 23.826654648		7.301	7.335			B9V	15	0
50	HD 74662	*	08 43 18.8006652552	-48 20 42.900493020		8.75	8.84			B3V	29	0
51	HD 74711	Pu*	08 43 47.5092392664	-46 47 56.368126716	6.49	7.156	7.111	8.26		B2III	47	0
52	HD 74773	*	08 44 09.7085822616	-47 06 57.977332992		7.112	7.218			B3IV	33	0
53	HD 74920	*	08 45 10.3405991688	-46 02 19.239667872	6.64	9.46	9.09	8.58		O7.5IVn((f))	77	0
54	HD 74979	*	08 45 47.3992272096	-40 36 56.081214072	6.37	7.179	7.231			B2III	33	0
55	HD 75009	*	08 45 47.4875639424	-44 14 52.850960628		6.581	6.677			B8IV/V	25	0
56	HD 75129	*	08 46 19.4086038360	-47 32 59.562119868		7.076	6.866			B5Ib	27	0
57	HD 75149	s*b	08 46 30.5469120768	-45 54 45.019158300	5.25	5.677	5.459	6.77		B5Iab	115	0
58	HD 75241	*	08 47 05.3640566952	-45 04 29.094350340	5.91	6.475	6.592			B4IV	34	0
59	HD 75309	V*	08 47 27.9647002224	-46 27 03.958625664	7.05	7.82	7.84	8.77		B2Ib/II	81	0
60	HD 75387	*	08 48 08.7766833888	-42 27 48.412381248	5.43	6.24	6.42			B2V	65	0
61	HD 75534	*	08 48 44.7928114944	-47 45 48.129964596	7.69	8.93	8.95	8.68		B1/2Ib	40	0
62	HD 75608	*	08 49 21.2624330688	-43 22 14.401029684		7.365	7.454			B6V	24	0
63	HD 75759	SB*	08 50 21.0167636904	-42 05 23.247034188	4.95	5.90	6.00	7.18		O9V+B0V	147	0
64	* f Vel	SB*	08 50 33.4606230120	-46 31 45.075306720	3.92	4.90	5.11	5.20	5.36	B1Ib	165	0
65	HD 76004	*	08 51 50.0352140688	-44 09 03.353593392		6.216	6.350			B3V	40	0
66	HD 76161	bC?	08 52 38.6066911992	-48 21 32.717223072		5.749	5.889			B5V	59	0
67	HD 76534	Be*	08 55 08.70673	-43 27 59.8852	7.04	7.62	7.50	8.94		B2Vn	142	0
68	HD 76566	*	08 55 19.2021546912	-45 02 30.024113964	5.47	6.10	6.26			B3IV	78	0
69	HD 76838	Be*	08 57 07.5515640336	-43 15 22.266109548	6.59	7.31	7.31			B2IV	72	0
70	HD 77320	Be*	09 00 22.2552895536	-43 10 26.376862224	5.16	5.93	6.08	6.07	6.19	B2Vnn(e)	98	1
71	HD 78005	V*	09 04 05.7796138272	-47 26 29.214486996	5.64	6.290	6.438			B3IV/V	44	0
72	HD 79275	Pu*	09 11 33.3821694024	-46 35 02.077742148	4.7	5.575	5.769			B2III/IV	81	0
73	* kap Vel	SB*	09 22 06.8176100	-55 00 38.401683	1.5	2.324	2.473			B2IV	172	0

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