2022ApJ...937...64K

Query : 2022ApJ...937...64K

2022ApJ...937...64K - Astrophys. J., 937, 64 (2022/October-1)

The Galactic Nova Rate: Estimates from the ASAS-SN and Gaia Surveys.

KAWASH A., CHOMIUK L., STRADER J., SOKOLOVSKY K.V., AYDI E., KOCHANEK C.S., STANEK K.Z., KOSTRZEWA-RUTKOWSKA Z., HODGKIN S.T., MUKAI K., SHAPPEE B., JAYASINGHE T., SMITH M.R., HOLOIEN T.W.-S., PRIETO J.L. and THOMPSON T.A.

Abstract (from CDS):

We present the first estimate of the Galactic nova rate based on optical transient surveys covering the entire sky. Using data from the All-Sky Automated Survey for Supernovae (ASAS-SN) and Gaia-the only two all-sky surveys to report classical nova candidates-we find 39 confirmed Galactic novae and 7 additional unconfirmed candidates discovered from 2019 to 2021, yielding a nova discovery rate of ≈14 yr–1. Using accurate Galactic stellar mass models and three-dimensional dust maps and incorporating realistic nova light curves, we have built a sophisticated Galactic nova model to estimate the fraction of Galactic novae discovered by these surveys over this time period. The observing capabilities of each survey are distinct: the high cadence of ASAS-SN makes it sensitive to fast novae, while the broad observing filter and high spatial resolution of Gaia make it more sensitive to highly reddened novae across the entire Galactic plane and bulge. Despite these differences, we find that ASAS-SN and Gaia give consistent Galactic nova rates, with a final joint nova rate of 26 ± 5 yr–1. This inferred nova rate is substantially lower than found by many other recent studies. Critically assessing the systematic uncertainties in the Galactic nova rate, we argue that the role of faint, fast-fading novae has likely been overestimated, but that subtle details in the operation of transient alert pipelines can have large, sometimes unappreciated effects on transient recovery efficiency. Our predicted nova rate can be directly tested with forthcoming red/near-infrared transient surveys in the southern hemisphere.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Classical novae - Novae - Cataclysmic variable stars - White dwarf stars

Simbad objects: 64

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Number of rows : 64
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 V* V1391 Cas No* 00 11 42.97 +66 11 19.0           ~ 31 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1586 0
5 V* YZ Ret No* 03 58 29.5511765184 -54 46 41.230757208 15.54 16.588 16.680     sdB?/DA? 76 0
6 TCP J04291888+4354233 No* 04 29 18.70 +43 54 21.5           ~ 18 0
7 V* V2860 Ori No* 06 09 57.4531362408 +12 12 25.158377304           ~ 13 0
8 V* V549 Vel No* 08 50 29.6156560929 -47 45 28.328022263   17.67 16.45 15.90 15.09 ~ 26 0
9 ASASSN -19am No* 09 30 39.31 -54 47 04.3           ~ 2 0
10 V* V906 Car No* 10 36 15.4286177568 -59 35 53.696262804           ~ 108 1
11 V* V357 Mus No* 11 26 15.160 -65 31 23.30           ~ 32 0
12 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
13 V* V1405 Cen No* 13 20 55.35 -63 42 19.1           ~ 13 0
14 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
15 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
16 V* V1369 Cen No* 13 54 45.3506993424 -59 09 04.093260192   15.5   15.1   ~ 96 0
17 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
18 ASASSN -19nf No* 14 19 35.09 -59 58 24.0           ~ 2 0
19 AT 2020ofq No? 15 22 33.520 -55 59 40.38           ~ 2 0
20 AT 2020oju No* 15 25 50.940 -55 10 29.68           ~ 3 0
21 AT 2021abud No* 15 27 31.610 -55 06 23.83           ~ 2 0
22 AT 2021wkq No* 16 44 50.210 -45 15 48.10           ~ 2 0
23 ASASSN -19fd No* 17 03 19.29 -29 52 23.3           ~ 2 0
24 V* V1706 Sco No* 17 07 34.186 -36 08 21.26           ~ 11 0
25 V* V1710 Sco No* 17 09 08.11 -37 30 40.9           ~ 8 0
26 PNV J17120009-4017560 No* 17 12 00.18 -40 17 56.6           ~ 7 0
27 V* V1708 Sco ** 17 23 42.06264 -31 03 09.1296           ~ 8 0
28 ASASSN -21pa No* 17 26 19.382 -33 27 10.66           ~ 2 0
29 AT 2021aaav No* 17 32 21.96 -33 01 41.5           ~ 2 0
30 NOVA Oph 2021 No* 17 33 14.830 -27 43 10.99           ~ 9 0
31 AT 2021djk No? 17 34 38.070 -31 08 00.10           ~ 2 0
32 V* V1707 Sco No* 17 37 09.54 -35 10 23.2           ~ 13 0
33 AT 2019qfj No* 17 38 31.820 -29 03 47.12           ~ 6 0
34 V* V3731 Oph No* 17 38 35.10 -25 19 02.9           ~ 8 0
35 ASASSN -21lk No* 17 39 44.740 -36 16 40.55           ~ 6 0
36 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
37 V* RS Oph Sy* 17 50 13.1591484960 -06 42 28.480729788   11.884 10.776 11.228   K5.5/M0IIIe 1163 0
38 Gaia 20btn No? 17 50 19.43 -31 07 37.9           ~ 1 0
39 AT 2021abxa No* 17 54 14.140 -24 12 23.51           ~ 2 0
40 V* V6593 Sgr No* 17 54 59.90 -21 22 41.3           ~ 6 0
41 V* V5693 Sgr RS* 17 55 08.6830447632 -29 54 18.832140432         16.26 ~ 3 0
42 PNV J17561375-2942546 No* 17 56 13.75 -29 42 54.6           ~ 6 0
43 V* V6568 Sgr CV* 17 58 08.48 -30 05 37.6           ~ 9 0
44 V* V6595 Sgr No* 17 58 16.09 +29 14 56.6           ~ 15 0
45 AT 2021aadi No* 18 00 44.880 -21 39 40.54           ~ 3 0
46 TCP J18104219-1534184 No* 18 10 42.29 -15 34 18.0           ~ 10 0
47 V* V6567 Sgr No* 18 22 45.20 -19 36 02.6           ~ 17 0
48 V* V3890 Sgr No* 18 30 43.2877623168 -24 01 08.944843980     15.944 14.798 12.611 M5III 232 0
49 ASASSN -19pw No* 18 31 05.75 -14 47 52.6           ~ 2 0
50 V* V569 Sct EB* 18 32 18.7543966968 -13 25 32.254809672           ~ 4 0
51 V* V5668 Sgr No* 18 36 56.827920 -28 55 39.97524       16.028   ~ 142 0
52 V* V659 Sct No* 18 39 59.70 -10 25 41.9           ~ 19 0
53 V* V2000 Aql No* 18 43 53.40 +00 03 51.7           ~ 8 0
54 ASASSN -21eh No* 18 49 05.05 -19 02 04.2           ~ 8 0
55 NOVA Her 2021 No* 18 57 30.9832440660 +16 53 39.589542422           ~ 79 0
56 NOVA Aql 2019 No* 19 03 14.950 +01 20 28.25           ~ 3 0
57 AT 2021kgk No* 19 07 58.625 +08 43 45.14           ~ 11 0
58 AT 2021nwn No* 19 12 38.610 +12 41 34.40           ~ 2 0
59 V* V2029 Aql No* 19 14 26.30 +14 44 40.0           ~ 6 0
60 V* V569 Vul No* 19 52 08.25 +27 42 20.9           ~ 12 0
61 TCP J20210770+2914093 No* 20 21 07.70 +29 14 09.3           ~ 12 0
62 V* V339 Del No* 20 23 30.6873337580 +20 46 03.765339899   17.50 16.86     ~ 225 0
63 V* V2891 Cyg No* 21 09 25.53431040 +48 10 52.2267600           ~ 28 0
64 NOVA Cas 2021 No* 23 24 47.7316496050 +61 11 14.795108842           ~ 47 0

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