2016ApJ...833...14H


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:05:40

2016ApJ...833...14H - Astrophys. J., 833, 14-14 (2016/December-2)

Abundance derivations for the secondary stars in cataclysmic variables from near-infrared spectroscopy.

HARRISON T.E.

Abstract (from CDS):

We derive metallicities for 41 cataclysmic variables (CVs) from near-infrared spectroscopy. We use synthetic spectra that cover the 0.8 µm <= λ <= 2.5 µm bandpass to ascertain the value of [Fe/H] for CVs with K-type donors, while also deriving abundances for other elements. Using calibrations for determining [Fe/H] from the K-band spectra of M-dwarfs, we derive more precise values for Teff for the secondaries in the shortest period CVs, and examine whether they have carbon deficits. In general, the donor stars in CVs have subsolar metallicities. We confirm carbon deficits for a large number of systems. CVs with orbital periods >5 hr are most likely to have unusual abundances. We identify four CVs with CO emission. We use phase-resolved spectra to ascertain the mass and radius of the donor in U Gem. The secondary star in U Gem appears to have a lower apparent gravity than a main sequence star of its spectral type. Applying this result to other CVs, we find that the later-than-expected spectral types observed for many CV donors are mostly an effect of inclination. All of the magnetic CVs, except the low accretion rate polar MQ Dra, have donors with subsolar metallicities. We find that two systems with unusual spectra, EI Psc and QZ Ser, have large excesses of sodium and extreme deficits of carbon. Synthetic spectra that have a reduced abundance of hydrogen are best able to explain the spectra of these two objects.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): novae, cataclysmic variables - stars: abundances - stars: abundances

Simbad objects: 72

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Number of rows : 72

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* WW Cet DN* 00 11 24.7725920913 -11 28 43.204274910           ~ 167 0
2 * 57 Psc LP* 00 46 32.9513760419 +15 28 31.830279739 8.79 7.03 5.38     M4III 72 0
3 Wolf 47 Er* 01 03 19.8342607685 +62 21 55.831198996   15.34   12.4   M5V 166 0
4 V* RX And DN* 01 04 35.5373041151 +41 17 57.783687786   11.99 12.43     ~ 299 0
5 V* WX Cet DN* 01 17 04.17 -17 56 23.0           ~ 163 0
6 V* KT Per DN* 01 37 08.7947323898 +50 57 20.396805365   10.70       M3.5e 120 0
7 G 272-61A Er* 01 39 01.3765356886 -17 57 02.399297242           M5.5V 100 0
8 Ross 15 Er* 01 59 23.5138062650 +58 31 16.105242872   12.90 12.155 11.871   M4Ve 79 0
9 V* TT Ari No* 02 06 53.0797667881 +15 17 41.849759579   10.73 10.20     Bep: 420 0
10 HD 13905 * 02 13 32.5198142893 -57 12 42.165554432   10.24 9.64     F5/6V 3 0
11 HD 19305 PM* 03 06 26.7371937234 +01 57 54.628015605 11.697 10.44 9.055 8.201 7.427 M0V 117 0
12 V* GK Per No* 03 31 12.0096626899 +43 54 15.467450081   10.2 14.0     K1IV 871 0
13 LP 944-20 LM* 03 39 35.2525168530 -35 25 43.628465433     18.69 16.39 13.288 M9.5Ve 266 0
14 V* VW Hyi DN* 04 09 11.3966476826 -71 17 41.555169342   12.00 12.30 14.16   ?+L0:e 617 0
15 V* V1309 Ori AM* 05 15 41.4123841919 +01 04 40.479107028           M0.5 99 0
16 Ross 47 BY* 05 42 09.2672965388 +12 29 21.611736198 14.264 13.130 11.509 10.298 8.709 M4V 228 0
17 V* CN Ori DN* 05 52 07.7840511235 -05 25 00.542923401           ~ 172 0
18 HD 42581 Er* 06 10 34.6152510171 -21 51 52.658021185 10.801 9.607 8.125 7.164 6.121 M1V 404 0
19 V* SS Aur CV* 06 13 22.4341940496 +47 44 25.346818461   16.06 15.81     sdBe 245 0
20 V* CZ Ori DN* 06 16 43.2247028462 +15 24 11.297178349   12.81 12.81 16.17   OB- 89 0
21 V* CW Mon DN* 06 36 54.5809874602 +00 02 17.285853925     11.90     ~ 62 0
22 BD+05 1668 PM* 07 27 24.49975 +05 13 32.8332 12.558 11.443 9.872 8.699 7.161 M3.5V 346 0
23 V* U Gem DN* 07 55 05.2323858391 +22 00 05.045435077   15.3 14.54     DA 1049 0
24 Ross 619 PM* 08 11 57.5595749358 +08 46 22.983154927   14.60 12.834 12.527   M4.5Ve 170 0
25 V* SU UMa DN* 08 12 28.2694633475 +62 36 22.428029272           B2 471 0
26 V* VV Pup AM* 08 15 06.8010742098 -19 03 17.765651066     13.90     M7V 385 0
27 V* Z Cam DN* 08 25 13.1988897787 +73 06 39.284432670   11.85 10.00     ~ 489 0
28 G 51-15 Er* 08 29 49.3528237575 +26 46 33.626773321   16.87   14.736   M6.5Ve 255 0
29 V* SY Cnc DN* 09 01 03.3196276716 +17 53 56.031352233   12.3 10.60 12.971   G8V 143 0
30 V* CH UMa DN* 10 07 00.7219578828 +67 32 47.507173639   15.97       ~ 106 0
31 MCC 568 ** 10 12 04.6719766322 -02 41 05.170732851 13.415 12.205 10.629 9.581 8.303 M2.5V 93 0
32 BD+20 2465 Er* 10 19 36.2808024653 +19 52 12.014037746   10.82 9.52 9.19   dM3 1163 0
33 G 55-35 PM* 10 39 40.5642980607 -06 55 25.501668469 13.939 12.79 11.281 10.244 8.961 dM2.5 67 0
34 Wolf 358 BY* 10 50 52.0312400722 +06 48 29.263582377 14.532 13.319 11.675 10.459 8.889 M4V 229 0
35 HD 95735 Er* 11 03 20.19400 +35 58 11.5682 10.030 8.960 7.520 5.99 4.79 M2+V 631 0
36 V* ST LMi AM* 11 05 39.7662126421 +25 06 28.744817170   15.10       DAH+M 210 0
37 V* V436 Cen DN* 11 14 00.0570888106 -37 40 47.764345437           ~ 141 0
38 V* AR UMa CV* 11 15 44.5894046553 +42 58 22.427873664     16.4     D+M 127 0
39 V* TT Crt DN* 11 34 47.1766985214 -11 45 30.370184613   12.5       ~ 46 0
40 V* RZ Leo DN* 11 37 22.2523056583 +01 48 58.617841432     19.6     DA+dM2 146 0
41 V* YY Dra Al* 11 43 35 +71 42.2           ~ 28 1
42 V* DO Dra DN* 11 43 38.4924789768 +71 41 20.559348288       13.747   DQ 197 1
43 V* TW Vir DN* 11 45 21.1712747240 -04 26 05.778821560   17.38   15.03   M2 134 0
44 Ross 690 PM* 12 23 00.1606524678 +64 01 50.963777117   13.23 13.481 10.9   M3V 58 0
45 V* EX Hya DN* 12 52 24.2220533405 -29 14 56.001981146   13.51 13.49 13.55   M5-6V 651 0
46 PG 1550+191 CV* 15 52 47.1969313042 +18 56 28.845524001   16.4 15.46 17.0   M6.5Ve 179 0
47 V* MQ Dra AM* 15 53 31.1194029058 +55 16 14.478728017     17.35     M5Ve 36 0
48 V* QZ Ser DN* 15 56 54.4739950450 +21 07 19.082928416           ?+K4Ve 39 0
49 V* V893 Sco DN* 16 15 14.9806097394 -28 37 32.113976203           ~ 74 0
50 V* AH Her DN* 16 44 10.0057072570 +25 15 01.944744669   12.44 12.71     K2 223 0
51 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1726 1
52 VB 8 Er* 16 55 35.2561420232 -08 23 40.752903617   18.7 16.916 14.566 12.24 M7Ve 387 0
53 V* V2051 Oph DN* 17 08 19.0875545832 -25 48 31.695764973   17.5       ~ 228 0
54 V* EX Dra DN* 18 04 14.2486747659 +67 54 12.271788519   14.5 14.7     ~ 113 0
55 V* V426 Oph DN* 18 07 51.6921098902 +05 51 47.802415954           ~ 157 0
56 V* AM Her AM* 18 16 13.2546541781 +49 52 04.759861155     12.30     M4.5 914 0
57 V* V603 Aql No* 18 48 54.6369118792 +00 35 02.855110952 10.73 11.65 11.64     OB+e: 516 0
58 HD 180617 Ro* 19 16 55.2565250393 +05 10 08.038856129 11.768 10.63 9.115 8.076 6.782 M3-V 356 0
59 VB 10 Er* 19 16 57.6103282334 +05 09 01.588675251     17.30     M8V 438 1
60 V* EM Cyg DN* 19 38 40.1105232999 +30 30 28.313972620     11.90     ~ 240 0
61 V* EY Cyg DN* 19 54 36.7419691331 +32 21 55.087332328           sdBe+K0V 111 0
62 V* UU Aql DN* 19 57 18.7657735308 -09 19 21.064479670           K7-M0V 87 0
63 V* WZ Sge DN* 20 07 36.5036203067 +17 42 14.733657651   15.30 15.20     DAepv 895 0
64 V* AE Aqr DQ* 20 40 09.1598509019 -00 52 15.057042857   12.46 10.40   10.191 K3-5IV/V 614 0
65 BD+44 3567 PM* 20 45 04.0991768849 +44 29 56.643391465   12.03 10.704 10.299 8.57 M2V 127 0
66 V* VY Aqr DN* 21 12 09.2516769018 -08 49 36.776018749   8.00       ~ 210 1
67 V* SS Cyg DN* 21 42 42.8034554117 +43 35 09.863763484 11.07 8.2 7.70     K5V 1218 1
68 V* LS Peg DN* 21 51 57.9372002301 +14 06 53.267732979   11.89 12.10 12.18   ~ 81 0
69 V* RU Peg DN* 22 14 02.5507273174 +12 42 11.275480341     12     sdBe+G8IV:n 291 0
70 V* IP Peg DN* 23 23 08.5362716048 +18 24 59.206210572           M2 361 0
71 GD 1662 NL* 23 29 00.4711137193 -29 46 45.980626470           OBe 144 0
72 V* EI Psc DN* 23 29 54.2149131154 +06 28 11.597690024   16.86 16.22     ~ 109 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-07:05:40

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