- vsnet-newvar - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-newvar 9037] MASTER OT J064855.37-055545.7 = ASASSN-21fj
by Taichi Kato 21 Jan '22

21 Jan '22

MASTER OT J064855.37-055545.7 = ASASSN-21fj https://gcn.gsfc.nasa.gov/gcn/gcn3/26470.gcn3

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[vsnet-newvar 9036] ASASSN-22ax
by Taichi Kato 21 Jan '22

21 Jan '22

ASASSN-22ax Bright CV detected early. ASASSN-22ax --- ------- 2:53:21.49 -13:34:9.3 2022-01-20.18 13.44 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=20.5, g>17.2 on 2022-01-18.27, g=15.9 on 2022-01-19.22, g=13.6 on 2022-01-20.12 ASASSN-22ax 20220118.27 <172g ASN ASASSN-22ax 20220119.22 159g ASN ASASSN-22ax 20220120.12 136g ASN 025321.486 -133408.83 (2000.0) Gaia_DR2_5157734725783900032 plx=-(-) dismod=- pmra=-(-) pmdec=-(-) G=20.639 BP=20.719 RP=20.478 025321.486 -133408.83 (2000.0) Gaia_EDR3_5157734725783900032 plx=-0.681(1.731) dismod=- pmra=-10.028(1.037) pmdec=-18.710(1.362) G=20.572 BP=20.396 RP=20.680 025321.479 -133408.51 (2000.0) GALEX_DR5_2920234851152954444 NUV=20.984(0.066) FUV=21.024(0.092)

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[vsnet-newvar 9035] ASASSN-22au
by Taichi Kato 21 Jan '22

21 Jan '22

ASASSN-22au Large-amplitude outburst. ASASSN-22au --- ------- 7:56:28.53 -79:2:39.7 2022-01-16.36 13.76 SDSS DSS VIZIER ------- CV candidate, no Vizier match, g>17.8 on 2022-01-13.24, g=14.1 on 2022-01-16.30, g=14.3 on 2022-01-17.09, g=14.7 on 2022-01-18.81 ASASSN-22au 20220113.24 <178g ASN ASASSN-22au 20220116.30 141g ASN ASASSN-22au 20220117.09 143g ASN ASASSN-22au 20220118.81 147g ASN

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[vsnet-newvar 9034] ASASSN-20pv outburst (since Jan. 20)
by Patrick Schmeer 20 Jan '22

20 Jan '22

ASASSN-20pv (UGSU, AM CVn star?) https://www.aavso.org/vsx/index.php?view=detail.top&oid=2214355 Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) light curve and data: https://asas-sn.osu.edu/sky-patrol/coordinate/c52dbc25-5e71-4947-a906-97fae… ASASSN-20pv 20220119.2103 <16.15g ASN ASASSN-20pv 20220120.1483 12.29g ASN ASASSN-20pv 20220120.1495 12.34g ASN Time-resolved photometry is encouraged. Clear skies, Patrick ---------- Rod Stubbings wrote on Thursday, 20 January 2022 at 14:25:07 UTC: ASASSN-20pv (UGSU/IBWD:) is in outburst ASASSN-20pv 220120.535 123 -- Rod Stubbings Tetoora Road Observatory Victoria, Australia Telescope: "Infinity" 22" f/3.8 stubbo(a)dcsi.net.au http://rodstubbingsobservatory.wordpress.com/

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[vsnet-newvar 9033] ASASSN-15cg: (likely) superoutburst in 2021 Oct.-Nov.
by Patrick Schmeer 16 Jan '22

16 Jan '22

ASASSN-15cg (UGSU:) https://www.aavso.org/vsx/index.php?view=detail.top&oid=400079 Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) light curve and data: https://asas-sn.osu.edu/sky-patrol/coordinate/61eb8548-4003-48a0-af94-a9a35… Precursor outburst on 2021 October 22-23, followed by a (probable) superoutburst from October 28 to November 6 (which lasted only 9 days). Regards, Patrick ----------- Taichi Kato wrote (vsnet-chat 8336, 21 May 2019 at 05:10:54 UTC): ASASSN-15cg: SU UMa star Precursor + superoutburst in 2019 Mar. Superhump observations during the next superoutburst are required. ASAS-SN data: https://asas-sn.osu.edu/light_curves/cd3775fb-0434-43ef-a600-aaf8b029d90c

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[vsnet-newvar 9032] ASASSN-22as
by Taichi Kato 15 Jan '22

15 Jan '22

ASASSN-22as ASASSN-22as --- ------- 15:17:56.64 45:38:33.1 2022-01-13.62 14.52 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=22.1, g>18.6 on 2022-01-07.59, g=14.1 on 2022-01-10.62, g=14.8 on 2022-01-13.62 ASASSN-22as 20220107.59 <186g ASN ASASSN-22as 20220110.62 141g ASN ASASSN-22as 20220113.62 148g ASN 151756.233 +453832.77 (2000.0) GALEX_DR5_6374962000150138599 NUV=22.280(0.412) FUV=-(-)

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[vsnet-newvar 9031] Re: ASASSN-22an is a dwarf nova
by Taichi Kato 14 Jan '22

14 Jan '22

Re: ASASSN-22an is a dwarf nova Interesting result. The object was bright in 2021 Oct. and it would be difficult to imagine that a dwarf nova outburst last nearly three months (unless they were separate outbursts), and it is still disk-dominated.

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[vsnet-newvar 9030] ASASSN-22ao
by Taichi Kato 11 Jan '22

11 Jan '22

ASASSN-22ao ASASSN-22ao --- ------- 23:16:36.34 50:1:52.2 2022-01-9.11 15.42 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=20.0, g>17.4 on 2021-12-14.16, g=17.1 on 2022-01-07.21, g=15.8 on 2022-01-09.11 ASASSN-22ao 20211214.16 <174g ASN ASASSN-22ao 20220107.21 171g ASN ASASSN-22ao 20220109.11 158g ASN 2MASS 231636.315 +500152.31 (2000.0) 16.293 15.671 16.463 231636.274 +500152.27 (2000.0) Gaia_DR2_1990859453575783680 plx=0.274(0.385) dismod=12.8 pmra=-11.457(0.599) pmdec=-11.396(0.534) G=19.625 BP=19.780 RP=19.140 231636.273 +500152.27 (2000.0) Gaia_EDR3_1990859453575783680 plx=0.566(0.298) dismod=11.2 pmra=-11.471(0.288) pmdec=-10.445(0.254) G=19.612 BP=19.880 RP=19.152 Double outburst in 2018 June-July in ZTF data.

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[vsnet-newvar 9029] ASASSN-22an: possible nova
by Taichi Kato 11 Jan '22

11 Jan '22

ASASSN-22an: possible nova ASASSN-22an --- ------- 15:24:49.56 -57:39:52.7 2022-01-8.34 15.28 SDSS DSS VIZIER ------- possible Nova, very high extinction region, matches to GAIA DR2 G=19.6, g>17.6 on 2021-10-05.74, g=14.6 on 2021-10-08.98, g=15.6 on 2022-01-08.34 ASASSN-22an 20211005.74 <176g ASN ASASSN-22an 20211008.98 146g ASN ASASSN-22an 20210108.34 156g ASN

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[vsnet-newvar 9028] ASASSN-15rj possible superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

ASASSN-15rj possible superoutburst Relatively rare outburst. YYYYMMDD(UT) mag observer 20211231.5565 <166c (Yutaka Maeda) 20220102.5479 <138c (Yutaka Maeda) 20220103.5609 <165c (Yutaka Maeda) 20220104.5130 <158c (Yutaka Maeda) 20220106.5626 <165c (Yutaka Maeda) 20220107.5363 155:c (Yutaka Maeda)

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