2011A&A...530A..28G

Query : 2011A&A...530A..28G

2011A&A...530A..28G - Astronomy and Astrophysics, volume 530A, 28-28 (2011/6-1)

The MUCHFUSS project - searching for hot subdwarf binaries with massive unseen companions. Survey, target selection and atmospheric parameters.

GEIER S., HIRSCH H., TILLICH A., MAXTED P.F.L., BENTLEY S.J., OSTENSEN R.H., HEBER U., GAENSICKE B.T., MARSH T.R., NAPIWOTZKI R., BARLOW B.N. and O'TOOLE S.J.

Abstract (from CDS):

The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding sdBs with compact companions like supermassive white dwarfs (M>1.0M_☉), neutron stars or black holes. The existence of such systems is predicted by binary evolution theory and recent discoveries indicate that they are likely to exist in our Galaxy. A determination of the orbital parameters is sufficient to put a lower limit on the companion mass by calculating the binary mass function. If this lower limit exceeds the Chandrasekhar mass and no sign of a companion is visible in the spectra, the existence of a massive compact companion is proven without the need for any additional assumptions. We identified about 1100 hot subdwarf stars from the SDSS by colour selection and visual inspection of their spectra. Stars with high velocities have been reobserved and individual SDSS spectra have been analysed. In total 127 radial velocity variable subdwarfs have been discovered. Binaries with high RV shifts and binaries with moderate shifts within short timespans have the highest probability of hosting massive compact companions. Atmospheric parameters of 69 hot subdwarfs in these binary systems have been determined by means of a quantitative spectral analysis. The atmospheric parameter distribution of the selected sample does not differ from previously studied samples of hot subdwarfs. The systems are considered the best candidates to search for massive compact companions by follow-up time resolved spectroscopy.

Abstract Copyright: ∼

Journal keyword(s): binaries: spectroscopic - subdwarfs

VizieR on-line data: <Available at CDS (J/A+A/530/A28): table2.dat table3.dat table4.dat tablea1.dat refs.dat>

CDS comments: In ref list Ostensen et al. 2010MNRAS.408.51 is a misprint for ostensen et al. 2010MNRAS.408.L51

Simbad objects: 161

Full paper

View the references in ADS

Number of rows : 161

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	Ton S 135	HS*	00 03 22.0702217664	-23 38 58.025588136		13.054	13.30			sdBHe1	32	0
2	PG 0001+275	HS*	00 03 55.6035118584	+27 48 37.466739936		13.16	13.32	13.60		sdB2VIIHe3	17	0
3	PB 5916	HS*	00 23 23.9888810856	-00 29 53.303337780		15.50	15.58	15.93		sdB+D	18	0
4	KPD 0025+5402	HS*	00 28 28.9694039256	+54 19 15.031311528	12.85	13.76	13.91	14.09		sdB	12	0
5	EC 00404-4429	HS*	00 42 48.3762666960	-44 13 25.218650964		13.0	13.4			sdB	15	0
6	NGC 188	OpC	00 47 12	+85 14.6						~	892	0
7	NGC 188 2091	SB*	00 47 52.2151315344	+85 19 08.308468056	15.363	16.084	16.260	16.285	16.394	~	17	0
8	GD 656	HS*	00 51 03.9222688464	-19 59 59.319419640		14.56	14.83	15.01		sdBHe0	29	0
9	Ton S 183	HS*	01 01 17.5722745104	-33 42 45.434983572		12.39	14.631	12.95		sdB	46	0
10	Feige 11	HS*	01 04 21.6747168600	+04 13 37.054495956	10.847	11.826	12.065	12.183	12.324	sdB2VIHe4	119	0
11	GD 687	HS*	01 10 18.6196714608	-34 00 25.710906636		13.89	14.08	14.39		sdBHe1	33	0
12	FBS 0117+396	HS*	01 20 22.9396883304	+39 50 59.434295604		15.15	15.34			sdB	20	0
13	V* EO Cet	HS*	01 23 43.2471248112	-05 05 45.831024564		12.21	12.65			sdOV+F4V	63	0
14	SDSS J012739.34+404357.8	HS*	01 27 39.3543651120	+40 43 57.897632712		17.5		16.7		sdO	7	0
15	PG 0133+114	HS*	01 36 26.1919824456	+11 39 32.100292692		10.74				sdB1.5VIIHe4	37	0
16	CD-24 731	HS*	01 43 48.5449039272	-24 05 10.223541204		11.6	11.9			sdBHe0	63	0
17	EC 02200-2338	HS*	02 22 19.8375036240	-23 24 55.937378952		11.79	12.01			sdB	12	0
18	HE 0230-4323	HS*	02 32 54.6772339416	-43 10 27.791218308			13.78			sdB	28	0
19	Cl Melotte 20 488	HS*	03 21 39.6300972744	+47 27 18.797557932		11.54	11.73	11.83	11.55	sdB	17	0
20	BPS CS 22169-0001	HS*	03 56 23.3187391032	-15 09 19.438525044	11.50	12.61	12.88			sdB	19	0
21	V* IQ Cam	HS*	04 26 06.8650883976	+54 28 17.101122600	14.21	14.86	14.66			sdB	60	0
22	KUV 04421+1416	HS*	04 44 56.8983457992	+14 21 50.176351836		15.28				sdB	30	0
23	SDSS J052544.91+630726.2	HS*	05 25 44.9280802920	+63 07 26.047587828						sdOB	6	0
24	HD 269696	HS*	05 31 40.3594532592	-69 53 02.153902236	9.74	10.92	11.15			sdB+dM	186	0
25	HE 0532-4503	HS*	05 33 40.5164632128	-45 01 35.266985868	14.89	15.86	16.08			sdB	18	0
26	CPD-64 481	HS*	05 47 59.3028778320	-64 23 03.123185352		10.97	11.17			sdB	35	0
27	HD 49798	HXB	06 48 04.7001531360	-44 18 58.436036028	6.758	8.017	8.287	8.391	8.543	sdO6	315	0
28	V* V470 Cam	HS*	07 10 42.0513241680	+66 55 43.521505680						sdB+dM	106	1
29	SDSS J074534.15+372718.6	HS*	07 45 34.1642808864	+37 27 18.626681484		17.5		18.1		sdB	9	0
30	SDSS J075937.15+541022.1	HS*	07 59 37.1535958176	+54 10 22.234496268		17.4		18.0		sdB	8	0
31	GALEX J082053.6+000843	HS*	08 20 53.5359673248	+00 08 43.502407800		15.03	15.17	15.54	15.91	sdB+dM	37	1
32	PG 0826+480	HS*	08 30 06.1706625264	+47 51 50.365783728		16.1		16.28		sdB	19	0
33	PG 0839+399	HS*	08 43 12.7070709648	+39 44 49.808413428	12.918	14.045	14.324	14.445	14.587	sdB	35	0
34	Ton 358	HS*	08 52 54.6286389384	+31 43 36.648630876		14.29	14.59	14.78		sdOA	18	0
35	PG 0850+170	HS*	08 53 23.6576102448	+16 49 35.269007808		13.72	14.00	14.26		sdB	27	0
36	US 1993	HS*	08 57 27.6568703424	+42 42 15.549987852		18.6		19.1		sdOHe	8	0
37	PG 0907+123	HS*	09 10 25.4347130256	+12 08 27.078221868		13.76	13.92	14.19		sdB2VIHe2	28	0
38	PG 0918+029	HS*	09 21 28.2138172968	+02 46 02.254084824	11.975	13.056	13.327	13.456	13.615	sdB1VIIHe6	105	0
39	SDSS J092520.69+470330.6	HS*	09 25 20.7062509464	+47 03 30.613100112		16.9		17.8		sdB	7	0
40	HE 0929-0424	HS*	09 32 02.1130203840	-04 37 36.937709652		16.11	16.16			sdB	19	0
41	PG 0934+186	HS*	09 37 16.2701312016	+18 25 11.246800692		12.85	13.13	13.44		sdB	21	0
42	PG 0940+068	HS*	09 42 55.0400472528	+06 35 37.191101172		13.50	13.69	14.01		DA2:	25	0
43	Ton 22	HS*	09 43 54.5499190968	+27 46 59.158337664		12.95	13.24			sdB	15	0
44	Ton 1100	HS*	09 48 56.9607653232	+33 41 51.035810640		17.0		18.1		sdOBHe	13	0
45	SDSS J095229.62+301553.6	HS*	09 52 29.6270890656	+30 15 53.634306276		17.8		18.8		sdB	5	0
46	PG 0948+632	HS*	09 52 38.9349821112	+62 58 18.955488468		14.95	15.0			sdB	16	0
47	PG 1000+408	HS*	10 03 54.2702671056	+40 34 18.121531548	11.919	12.988	13.318	13.465	13.631	sdO	27	0
48	SDSS J100535.76+223952.1	HS*	10 05 35.7584868744	+22 39 52.160819544		17.7		18.8		sdB	5	0
49	V* XY Sex	HS*	10 20 14.4716431344	-08 53 46.406162688		14.46	14.43			sdB	36	0
50	GALEX J102151.6+301012	HS*	10 21 51.6455392728	+30 10 11.981229960		17.9		18.8		sdB+D	9	0
51	PG 1032+406	HS*	10 35 16.5804370224	+40 21 14.417268660		11.38	11.81			sdB	37	0
52	PG 1033+097	HS*	10 35 49.6843174008	+09 25 51.872231712		16.04	16.32			sdO	10	0
53	PG 1043+760	HS*	10 47 04.9690510104	+75 44 22.968415320		12.97				sdB	24	0
54	PG 1047-046	HS*	10 50 26.8995243000	-04 52 35.718249540		14.68				sdB+D	23	0
55	HE 1059-2735	HS*	11 01 24.8687002296	-27 51 41.914393668		15.21	15.56			sdO	9	0
56	Feige 36	HS*	11 04 31.6443383808	+24 39 42.687580896		12.87	12.78			sdB	51	0
57	PG 1102+097	HS*	11 04 45.0148727232	+09 25 30.871143732		16.1		16.0		sdO	9	0
58	Ton 62	HS*	11 13 04.4873645616	+29 07 46.225457796		14.2	14.086			sdB	21	0
59	PG 1115-065	HS*	11 18 11.6492036328	-06 47 32.162282988		14.83	15.08	15.59		sdO	11	0
60	Ton 63	HS*	11 19 04.8237788448	+29 51 52.663915008		14.11	14.37	14.61		sdB	29	0
61	LB 256	HS*	11 22 42.6864339168	+61 37 58.405638036		15.02	15.39	15.68		sdO	15	0
62	CBS 432	HS*	11 24 14.4520157640	+40 26 37.165836768		17.4		17.9		sdO	7	0
63	PB 2910	WD*	11 33 03.7115884560	+29 02 23.146671840						DA	13	0
64	LBQS 1131+0209	HS*	11 34 18.0057674544	+01 53 22.122564504		17.2		17.6	17.31	sdB	9	0
65	PG 1136-003	HS*	11 38 40.6873530648	-00 35 31.775883972		14.22	14.47	14.79		sdB1VIIeHe1	25	0
66	FBS 1136+621	HS*	11 39 35.4467054016	+61 49 53.934649068		16.5	16.1	17.3		sdB	10	0
67	Feige 48	HS*	11 47 14.4978515760	+61 15 31.789400364		13.12	13.28			sdB	114	0
68	Ton 1460	HS*	11 53 58.8150712224	+35 39 29.109198096		16.27				sdB	18	0
69	FBS 1154+617	HS*	11 57 16.3817760648	+61 24 10.730491488		17.1	17.0	17.6		sdB	13	0
70	PG 1230+052	HS*	12 33 12.5632632624	+04 57 37.603907964		13.26				sdB	22	0
71	PG 1232-136	HS*	12 35 18.7430526168	-13 55 08.879064096		13.06	13.27			sdB	27	0
72	EC 12408-1427	HS*	12 43 30.0485330304	-14 43 49.213141860		12.63	12.82	13.19		sdB	10	0
73	BD-07 3477	HS*	12 44 20.2386233232	-08 40 16.846099536		10.46	10.594	10.895		sdB2VIIHe3	279	1
74	PG 1244+113	HS*	12 47 06.6307680456	+11 03 13.355520768		13.05				sdB	22	0
75	GD 319	HS*	12 50 04.5262298	+55 06 01.800186		12.40	12.26	12.15		sdB+?	75	0
76	PG 1248+164	HS*	12 50 50.2676425896	+16 10 03.166128120		14.40	14.460			sdB	20	0
77	SDSS J125702.30+435245.8	HS*	12 57 02.3068263576	+43 52 45.892224876		18.1		18.6		sdB	8	0
78	PG 1258+012	HS*	13 00 59.2051279416	+00 57 11.766735576		16.6		16.7		sdOHe	23	0
79	LB 27	HS*	13 02 41.7580477728	+27 40 42.169462536		12.93	11.97			sdO6.5VIIpHe35	37	1
80	LB 28	HS*	13 04 39.5724595416	+31 29 04.914817872		16.6		17.0		sdO	23	0
81	HE 1318-2111	HS*	13 21 15.6370363200	-21 27 17.629351236		14.57	14.77			sdO	14	0
82	Feige 81	HS*	13 31 53.5517863824	+15 41 17.573728740		13.24	13.507			sdBpec	41	0
83	SDSS J133638.81+111949.4	HS*	13 36 38.8181063760	+11 19 49.382384448		17.0		17.4		sdB	8	0
84	V* NY Vir	HS*	13 38 48.1466908176	-02 01 49.207286748		13.43	13.66	13.75		sdB1VIIHe1	211	1
85	SDSS J134352.14+394008.3	HS*	13 43 52.1450149008	+39 40 08.386075560		17.7		18.4		sdBHe	6	0
86	SDSS J135807.95+261215.5	HS*	13 58 07.9613248344	+26 12 15.449622984		18.4		18.4		sdB	6	0
87	PG 1403+019	HS*	14 05 45.2598323208	+01 44 19.013040672		15.69	15.79	15.88		sdB	18	0
88	PG 1413+114	HS*	14 15 49.0544405496	+11 12 13.919058468	14.58	15.9	16.07	16.0		sdOC9.5VIIHe39	18	0
89	[CW83] 1419-09	HS*	14 22 40.3209682608	-09 17 21.784718400			12.09			sdOB	17	0
90	PG 1421-121	HS*	14 24 08.7743935896	-12 20 20.221592100		15.4		15.77		sdB	12	0
91	LBQS 1429-0015	HS*	14 31 53.0603608896	-00 28 24.350031516		17.5		19.0		sdO	11	0
92	PG 1432+159	HS*	14 35 18.9439382472	+15 40 14.376188748		13.63				sdB	28	1
93	PG 1438-029	HS*	14 40 52.8282561960	-03 08 52.656678456		13.64	13.79	14.23		sdBHe0	15	0
94	PG 1448-052	HS*	14 51 13.1204893176	-05 23 16.874665800		14.96				sdO8VIIHe0	15	0
95	PG 1502+113	HS*	15 05 13.5273847872	+11 08 36.707510400		15.14	15.38	15.87		sdB+D	12	0
96	SBSS 1506+498	SB*	15 08 29.0268644856	+49 40 50.914383456		17.5		17.6		sd	13	0
97	SDSS J151415.66-012925.2	HS*	15 14 15.6671079912	-01 29 25.224822564		16.5		17.0	16.97	sdOHe	9	0
98	Ton 788	HS*	15 14 32.4559114224	+24 10 40.705772196		13.03	13.21			sdB	27	0
99	PG 1519+640	HS*	15 20 31.3676002152	+63 52 08.251179924		12.03	12.18			sdB1.5VIIHe5	35	0
100	SDSS J152222.14-013018.3	HS*	15 22 22.1520741984	-01 30 18.312510312		17.3		17.7		sdB+D	12	0
101	SDSS J152705.03+110843.9	HS*	15 27 05.0388635328	+11 08 44.014605180						sdOB	7	0
102	PG 1528+104	HS*	15 31 10.3888662624	+10 15 00.931449960		13.90	14.14			sdB	16	0
103	FBS 1531+381	HS*	15 33 49.4441301600	+37 59 28.095378720			13.08			sdB+dM	37	0
104	SBSS 1532+547	HS*	15 34 11.1131172096	+54 33 45.400524732						sdB	10	0
105	Ton 245	HS*	15 40 23.4584740128	+26 48 29.782769184		13.653	13.859	14.073		sdB	41	0
106	PG 1544+488	HS*	15 46 11.6930203944	+48 38 37.228874928		12.52	12.79	13.08		sdBC1VIIpHe39	42	1
107	SDSS J155628.34+011334.9	HS*	15 56 28.3476059184	+01 13 34.934261988						sdB	10	0
108	SDSS J161140.50+201857.0	HS*	16 11 40.5066050376	+20 18 57.065870196		18.6		19.0		sdOB	6	0
109	SDSS J161817.65+120159.6	HS*	16 18 17.6562752184	+12 01 59.616890436		18.5		18.0		sdB	7	0
110	PG 1619+522	HS*	16 20 38.7296260680	+52 06 08.805043260		13.36				sdB0.5VIIHe7	29	0
111	PG 1621+476	HS*	16 22 56.6652852936	+47 30 51.128501040		16.07	16.19			sdB+dM	41	0
112	M 4	GlC	16 23 35.22	-26 31 32.7						~	1793	0
113	[KTK97] V46	HS*	16 23 47.19	-26 31 56.5	18.85	18.85	18.58	18.39	18.16	sdB	20	0
114	PG 1627+017	HS*	16 29 35.3015001600	+01 38 18.794125032		11.32				sdB3VIIHe3	40	0
115	SDSS J163702.79-011351.7	HS*	16 37 02.7891046800	-01 13 51.702198528						sdO	8	0
116	PG 1641+331	HS*	16 43 26.0466391488	+33 01 13.161215748			16.8			sdB	14	0
117	PG 1652+307	HS*	16 54 04.2604280400	+30 37 01.824863592		15.20	15.41	15.77		sdB	12	0
118	SDSS J170645.57+243208.6	HS*	17 06 45.5741597664	+24 32 08.657892168		17.7		17.9		sdB	6	0
119	SDSS J170810.98+244341.5	HS*	17 08 10.9797019368	+24 43 41.638232100		18.1		18.6		sdBHe	7	0
120	SBSS 1715+556	HS*	17 16 17.3420128512	+55 34 46.634777328		17.5		17.3		sdB	13	0
121	SDSS J171629.91+575121.2	HS*	17 16 29.9195011632	+57 51 21.198496608		17.6		18.4		sdO	11	0
122	PG 1716+426	HS*	17 18 03.8584522800	+42 34 12.562847292		13.69	13.97			sdB2VIIHe3	105	0
123	PG 1724+278	HS*	17 26 24.0995740464	+27 44 19.354086276		15.94				sdB+D	12	0
124	PG 1725+252	HS*	17 27 57.3822732240	+25 08 35.697468192		11.54	13.01			sdB1.5VIIHe2	23	0
125	[CW83] 1735+22	HS*	17 37 26.4244582176	+22 08 57.716443392		11.51	11.65			sdB+A?	21	0
126	PG 1743+477	HS*	17 44 26.3960708352	+47 41 46.918908168		13.68	13.79	13.99		sdB2VIIHe7	28	0
127	SDSS J174516.32+244348.3	HS*	17 45 16.3216747848	+24 43 48.408567492		17.2		17.8		sdO	5	0
128	NAME Galactic Center	reg	17 45 39.60213	-29 00 22.0000						~	13560	0
129	SDSS J175125.67+255003.4	HS*	17 51 25.6735408560	+25 50 03.435616392		17.4		17.4		sdB	7	0
130	OGLE BUL-SC16 335	HS*	18 09 48.2260900608	-26 41 49.486723692				16.04		sdB+dM	16	0
131	HD 171858	HS*	18 37 56.6714756304	-23 11 35.188389420		9.64	9.85			sdB	39	0
132	ATO J291.5394+37.3356	HS*	19 26 09.4422931056	+37 20 08.163008556		13.60	13.63	14.05	13.96	sdB+dM	28	0
133	KPD 1930+2752	HS*	19 32 14.8088063952	+27 58 35.445679608	12.80	13.75	13.82			sdB	154	0
134	Kepler-451	HS*	19 38 32.6123816016	+46 03 59.135231952		12.17	12.69	12.46	12.399	sdB+dM	70	0
135	KPD 1946+4340	HS*	19 47 42.8876526504	+43 47 30.754543092	13.05	14.06	14.23	14.92		sdOB+D	56	0
136	HD 188112	HS*	19 54 31.4191828536	-28 20 20.679710640		10.01	10.22			sdB	93	0
137	V* V1828 Aql	HS*	20 20 00.4587151080	+04 37 56.517736296		12.9		13.34		sdOB+dM	65	1
138	SDSS J202313.83+131254.9	HS*	20 23 13.8369619224	+13 12 54.947653488		17.2		17.4		sdB	5	0
139	SDSS J202758.63+773924.5	HS*	20 27 58.6302464928	+77 39 24.573663540						sdO	4	0
140	KPD 2040+3955	HS*	20 42 33.9314151936	+40 05 41.601180120	13.62	14.34	14.48	14.59		sdB	15	0
141	SDSS J204300.90+002145.0	HS*	20 43 00.9065922648	+00 21 45.052847352		18.4		18.7		sdO	7	0
142	SDSS J204448.63+153638.7	HS*	20 44 48.6300172392	+15 36 38.746938060		17.8		18.1		sdB	5	0
143	SDSS J204546.81-054355.7	HS*	20 45 46.8170398344	-05 43 55.648962660		17.9		17.4		sdB	9	0
144	SDSS J204613.40-045418.7	HS*	20 46 13.3997229312	-04 54 18.732467916		15.96	16.32			sdB+D	11	0
145	GALEX J204940.8+165004	HS*	20 49 40.8621862344	+16 50 03.622175484		16.8		17.7		sdOHe	7	0
146	SDSS J210454.88+110645.6	HS*	21 04 54.8842338912	+11 06 45.600555600		17.2		17.1		sdOB	5	0
147	JL 82	HS*	21 36 01.2957494184	-72 48 27.222290172	11.26	12.44	12.41	12.67		sdB	35	0
148	HE 2135-3749	HS*	21 38 44.1996638736	-37 36 14.997662460	12.66	13.68	13.9			sdB	18	0
149	HE 2150-0238	HS*	21 52 35.5115148504	-02 24 29.523285216		15.8		16.2		sdB	13	0
150	PB 5010	HS*	21 56 48.7155326880	+00 36 20.793703752		17.8		18.2		sdO	11	0
151	HS 2231+2441	HS*	22 34 21.4832585640	+24 56 57.392918196			14.20			sdB+dM	47	1
152	PB 7352	HB*	22 55 43.1874214920	-06 59 39.865486164		12.09	12.21			sd	16	0
153	PG 2254+067	HS*	22 56 38.3455333032	+06 56 51.179249220		15.18				sdB	14	0
154	Feige 108	HS*	23 16 12.4074790200	-01 50 35.103759540	11.671	12.736	12.973	13.079	13.218	sdB	63	0
155	PG 2317+046	HS*	23 19 55.3509680256	+04 52 34.659100740	11.493	12.630	12.876	12.950	12.994	sdO8VIIHe1	32	0
156	SDSS J232757.46+483755.2	HS*	23 27 57.4683134520	+48 37 55.253737524						sdO	6	0
157	SDSS J233406.10+462249.3	HS*	23 34 06.1072894272	+46 22 49.318553244		16.0		16.6		sdOB	8	0
158	HS 2333+3927	HS*	23 35 42.5025647712	+39 44 27.064626936			14.53			sdOB	40	0
159	SDSS J234528.86+393505.2	HS*	23 45 28.8610104456	+39 35 05.264003796		17.3		17.5		sdO	7	0
160	PG 2345+318	HS*	23 48 07.5058804680	+32 04 48.038131020		13.99	14.19	14.66		sdB	28	0
161	FBS 2347+385	HS*	23 49 47.6462597640	+38 44 41.547259860		11.65	11.73	12.03		sdB	16	0

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