2021AJ....162..113V

Query : 2021AJ....162..113V

2021AJ....162..113V - Astron. J., 162, 113-113 (2021/September-0)

A systematic search for outbursting AM CVn systems with the Zwicky Transient Facility.

VAN ROESTEL J., CRETER L., KUPFER T., SZKODY P., FULLER J., GREEN M.J., RICH R.M., SEPIKAS J., BURDGE K., CAIAZZO I., MROZ P., PRINCE T.A., DUEV D.A., GRAHAM M.J., SHUPE D.L., LAHER R.R., MAHABAL A.A. and MASCI F.J.

Abstract (from CDS):

AM CVn systems are a rare type of accreting binary that consists of a white dwarf and a helium-rich, degenerate donor star. Using the Zwicky Transient Facility (ZTF), we searched for new AM CVn systems by focusing on blue, outbursting stars. We first selected outbursting stars using the ZTF alerts. We cross matched the candidates with Gaia and Pan-STARRS catalogs. The initial selection of candidates based on the Gaia BP-RP contains 1751 unknown objects. We used the Pan-STARRS g-r and r-i color in combination with the Gaia color to identify 59 strong AM CVn candidates. We obtained identification spectra of 35 sources, of which 18 are high-priority candidates, and discovered nine new AM CVn systems and one magnetic CV that shows only He-II lines. Using the outburst recurrence time, we estimate the orbital periods of the nine new AM CVn systems that are in the range of 29-50 minutes. We conclude that targeted follow up of blue, outbursting sources is an efficient method to find new AM CVn systems and we plan to follow up all candidates we identified to systematically study the population of outbursting AM CVn systems.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): AM Canum Venaticorum stars - Cataclysmic variable stars - Sky surveys

Simbad objects: 37

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Number of rows : 37
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ZTF18abhqcfi CV* 00 13 01.0284280088 +51 13 58.691689873           ~ 1 0
2 CRTS J022436.4+372021 CV* 02 24 36.4388843422 +37 20 21.462725338           ~ 3 0
3 ZTF18acujsfl CV* 04 49 30.0776169912 +02 51 53.682517728           D 4 0
4 ZTF19aamfvdm CV* 05 53 15.6907405968 -26 48 46.961597440           ~ 2 0
5 ZTF19acecitx CV* 06 21 50.3284594365 -24 43 47.097895933           ~ 2 0
6 ZTF18abtnfzy CV* 06 26 09.6363225897 +67 45 31.548988517           ~ 1 0
7 ZTF18acgmwpt CV* 07 01 15.7946506925 +50 23 21.623782407           D 5 0
8 ZTF19aadqrmz CV* 07 07 08.0296166399 -00 56 41.194630367           ~ 1 0
9 WISE J072842.80+533739.4 CV* 07 28 42.7693901062 +53 37 39.366473514           ~ 1 0
10 CRTS J074400.5+415504 CV* 07 44 00.4776155584 +41 55 03.856959801           ~ 4 0
11 RX J0806.3+1527 XB* 08 06 22.9520149296 +15 27 31.002199488   20.7 20   21.2 ~ 145 0
12 MASTER OT J082047.74+680423.3 CV* 08 20 47.6520407664 +68 04 24.137877864   20.0   19.8   D 5 0
13 FBS 0826-000 CV* 08 29 25.2666340848 -00 13 47.543809008   17.105 17.853 16.142   ~ 4 0
14 SDSS J084419.72+063950.4 CV* 08 44 19.7237473915 +06 39 50.233957100           D 2 0
15 CRTS J090852.2+071640 CV* 09 08 52.2116438329 +07 16 39.009395792           ~ 3 0
16 V* YZ LMi CV* 09 26 38.7250463760 +36 24 02.456809632           DB 65 0
17 SDSS J104450.08+232431.2 CV* 10 44 50.0865012028 +23 24 31.427559365           ~ 2 0
18 SDSS J105333.76+285033.6 CV* 10 53 33.7634339688 +28 50 33.755532324           ~ 3 0
19 ASASSN -17fo CV* 11 38 35.6791245960 +04 44 54.707996364           ~ 4 0
20 V* AM CVn CV* 12 34 54.6231062664 +37 37 44.120620056   14.02 14.13 14.47   DBnnp 409 0
21 CRTS J131514.4+424747 CV* 13 15 14.4053909056 +42 47 44.598367498           ~ 4 0
22 ASASSN -19rg CV* 13 25 58.1266646779 -14 52 26.313792530           D 2 0
23 CRTS CSS130419 J132918-121622 CV* 13 29 18.5035384967 -12 16 22.577994796           D 3 0
24 ZTF19aadtlkv CV* 13 48 01.8981718749 -09 17 42.106833457           ~ 1 0
25 CRTS J154428.1+335725 CV* 15 44 28.1324284784 +33 57 24.302624751           ~ 3 0
26 SDSS J163618.34-011506.1 CV* 16 36 18.3424717184 -01 15 06.189964803           ~ 1 0
27 CRTS J164748.0+433845 CV* 16 47 47.9918354169 +43 38 44.305078113           ~ 5 0
28 ZTF18aavoyoq CV* 18 14 39.7265449385 +50 18 34.794113387           ~ 1 0
29 SDSS J182634.66+225610.6 CV* 18 26 34.6672457483 +22 56 10.473394041           ~ 1 0
30 RX J1914.4+2456 XB* 19 14 26.0922577338 +24 56 43.322660677           ~ 138 0
31 ZTF21aapvkyy CV* 19 17 08.2175277614 +30 00 23.234264730           ~ 1 0
32 MASTER OT J191841.98+444914.5 CV* 19 18 42.0088356216 +44 49 12.694079064       19.2   D 7 0
33 ZTF18abcxayn CV* 19 19 15.6779505264 +35 08 50.301319920           ~ 2 0
34 ZTF18abobpds CV* 20 15 35.3441295601 -14 16 44.513321899           ~ 1 0
35 CRTS J204258.8-003353 CV* 20 42 58.7883634968 -00 33 53.931149280           ~ 3 0
36 CRTS J210820.6-134909 CV* 21 08 20.6184085257 -13 49 09.269383455           D 3 0
37 ZTF18abihypg CV* 21 28 22.1920574400 +63 25 57.471245544           D 5 0

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