2020JAVSO..48...50P

Query : 2020JAVSO..48...50P

2020JAVSO..48...50P - J. Am. Assoc. Variable star obs., 48, 50 (2020)

Period Analysis of All-Sky Automated Survey for Supernovae (ASAS-SN) Data on a Sample of "Irregular" Pulsating Red Giants.

PERCY J.R.

Abstract (from CDS):

All-Sky Automated Survey for Supernovae (ASAS-SN) data and, for some stars, AAVSO visual and V data have been used to study the possible periodicity of 74 "irregular" pulsating red giants (PRGs) in the AAVSO observing program. Results have been obtained and tabulated for 41 of them. For most of the tabulated stars, the new data provide more and/or better results than AAVSO data alone. All have small amplitudes. Several of the stars appear to have a long secondary period, as well as a pulsation period. A very few may be bimodal. Only about half of the periods that we derive are consistent with the periods in the VSX catalogue. We recommend that the AAVSO consider which of these small-amplitude "irregular" stars should continue to be observed, and how.

Abstract Copyright: ∼

Journal keyword(s): stars - stars: late-type - techniques: photometric - methods: statistical - stars: variable - stars: oscillations

Simbad objects: 41

goto View the references in ADS

Number of rows : 41
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* AA Cas LP* 01 19 25.6581266232 +56 19 45.019195896   9.93 8.54     M6III: 39 0
2 V* ST Psc AB* 01 27 49.6277966280 +16 42 08.954189928   10.96 9.69     M5 28 0
3 V* WW Cas C* 01 33 32.6883817224 +57 45 05.452746228   13.14 9.10     C5,5 61 0
4 V* SW Cet AB* 01 38 30.0595764144 +01 21 40.328329572   11.21 9.94     M5 27 0
5 V* FR Per C* 04 11 32.5182205152 +51 20 02.940832752   12.68 12.20     C4,5 32 0
6 V* AV Eri LP* 04 19 57.7005603552 -18 43 19.640826264   13.27 11.35     M6.5 12 0
7 V* UX Cam AB* 05 10 46.1972928216 +68 40 13.610102952   9.69 8.27     M6 14 0
8 V* EX Ori AB* 05 24 28.8521590104 -06 08 49.823290896   11.19 9.98     M7III: 38 1
9 HD 247224 C* 05 45 26.5282526640 +15 30 45.304731540   11.77 9.20     C5,4 39 0
10 V* V352 Ori AB* 06 01 46.9216393272 -02 21 13.548749112   9.384 8.970 7.529   M6III 33 0
11 V* WY Gem s*r 06 11 56.2504087680 +23 12 25.413007284 10.24 9.20 7.38 5.57 4.04 M2Iabep+B: 145 0
12 V* FI Gem LP* 06 49 09.0556717704 +16 09 44.983109448           M6.5 5 0
13 V* AA Cam S* 07 14 52.0696706376 +68 48 15.359511204   9.23 7.79     M5S 77 0
14 V* HM Aur AB* 07 29 06.8010409608 +40 40 57.614771784   11.81 10.70     M7-III 13 0
15 V* UV Cnc AB* 08 38 46.6913826864 +21 09 34.036743816   10.51 9.07     M0 23 0
16 V* RU Car C* 09 15 16.8648815928 -66 14 10.016499192 17.28 12.18 9.71     C 33 0
17 V* FI Vel LP* 09 43 17.3776682352 -45 54 59.456113056           ~ 4 0
18 V* BO Car s*r 10 45 50.6576914056 -59 29 19.321115064 10.98 9.24 7.45 7.64   M4Ib 69 0
19 V* AO Cru s*r 12 17 45.7491159960 -63 36 58.138997184   9.353 7.28     M0Ia/ab 33 0
20 V* V396 Cen s*r 13 17 25.0405257912 -61 35 02.342241960   9.93 7.92     M4Ia-Iab 44 0
21 V* DK Boo LP* 13 43 59.0950660392 +21 49 05.026257552   9.75 8.06     K4Ib-II 26 0
22 V* GN Her LP* 16 31 56.4051264024 +38 51 30.037773492   10.74 9.15     M4III: 14 0
23 V* AZ Dra LP* 16 40 42.5204504832 +72 40 17.957564940   8.56 7.01     M2 30 0
24 V* V TrA C* 16 50 06.5999441904 -67 46 58.127457576   10.57 10.00     C5,5 41 0
25 V* V939 Her LP* 17 10 18.5262421728 +40 41 23.799026580   9.25 7.97     ~ 26 0
26 HD 155852 ** 17 15 31.4466879384 -33 06 15.358498344   9.65 7.89     M1/2 8 0
27 V* TU Lyr AB* 18 20 30.2775855816 +31 45 21.245761908   11.38 10.13     M6-7e 33 0
28 V* V338 Aql LP? 19 05 14.8704741792 +17 48 57.816626832   12.20 10.53 9.42   M3 11 0
29 V* PX Lyr LP* 19 19 53.1949208952 +29 52 28.666541208   12.58 10.93     ~ 6 0
30 V* V1152 Cyg LP* 19 48 00.6686348400 +36 25 52.995509688   13.92 12.05 10.66   M6 11 0
31 V* AX Cyg C* 19 57 12.5066777184 +44 15 40.037709024 12.97 11.28 7.85     C-N5- 92 0
32 V* V485 Cyg LP* 20 01 15.0712926024 +33 55 42.205580076   9.58 8.33     M5III 19 0
33 V* SV Cyg C* 20 09 30.0879727920 +47 52 17.184809388   11.74 11.67     C7,4e: 72 0
34 V* BI Cyg s*r 20 21 21.8869298736 +36 55 55.728708060   11.48 8.40     M4Iab 109 0
35 V* CT Del AB* 20 29 26.3550925128 +09 53 52.203796296   8.83 7.34     M7 29 0
36 IRC +40444 s*r 20 43 40.6380826920 +44 28 37.588016460       11.461   M2I 14 0
37 V* KP Del LP* 20 45 10.1742149088 +18 17 35.343866148   10.12 8.43     Ma 10 0
38 V* PV Peg AB* 22 23 56.3915228880 +31 15 42.305576148   8.55 7.04     M3 28 0
39 IRAS 22404+1013 LP* 22 42 58.0692772872 +10 29 05.315687844   12.82 11.77     M5/6 9 0
40 V* GO Peg LP* 22 55 00.9740264736 +19 33 35.024486040   9.08 7.45     ~ 27 0
41 V* PY Cas RV* 23 43 43.5268223040 +61 05 52.493817696   12.31 10.27     M4-5II 12 0

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