RA/DEC (2000)
21:55:48.960 -17:48:56.88
328.954 -17.8158
Type
CV
Redshift
0
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2017-09-26 08:01:03.000
TNS AT
Y
Public
Y
Discovery Mag
16.34
Filter
V-Johnson
Reporter/s
J. L. Prieto for the ASAS-SN team

Spectra

 AT_2017gwx - 2017-09-28 01:34:31 ESO-NTT / EFOSC2-NTT (ePESSTO)z=
 AT_2017gwx - 2017-09-27 02:22:36 Magellan-Baade / IMACS (ASAS-SN)z=
Show H at z=vexp= km/s
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Show [Ca II] at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),

Light curves

 Gaia_Gaia-photometric_G
 ASASSN-1_Brutus_V
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
1249 2017-09-28 01:34:31 ESO-NTT / EFOSC2-NTT 600 S.T. Hodgkin, K. Rybicki M. Fraser, E. Callis ePESSTO tns_2017gwx_2017-09-28_01-34-31_ESO-NTT_EFOSC2-NTT_ePESSTO.asci tns_2017gwx_2017-09-28_01-34-31_ESO-NTT_EFOSC2-NTT_ePESSTO.fits Object
1240 2017-09-27 02:22:36 Magellan-Baade / IMACS K. Boutsia ASAS-SN tns_2017gwx_2458023.59903_Magellan-Baade_IMACS_ASAS-SN.txt tns_2017gwx_2458023.59903_Magellan-Baade_IMACS_ASAS-SN.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
G-Gaia Gaia_Gaia-photometric 2017-05-19 18:14:24 - 2017-10-06 19:10:33 2457893.26 - 2458033.2989931 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
21059 2017-10-06 19:10:33 2458033.2989931 17.63 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
21058 2017-05-19 18:14:24 2457893.26 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
V-Johnson ASASSN-1_Brutus 2017-09-21 04:28:41 - 2017-09-26 08:01:03 2458017.68659 - 2458022.83407 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
20582 2017-09-26 08:01:03 2458022.83407 16.34 0.07 VegaMag V-Johnson ASASSN-1_Brutus
20583 2017-09-24 08:09:04 2458020.83963 16.92 0.13 VegaMag V-Johnson ASASSN-1_Brutus
20581 2017-09-21 04:28:41 2458017.68659 17.9 VegaMag V-Johnson ASASSN-1_Brutus [Last non detection]
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
14019 2017-10-10 08:13:06 Gaia_Bot1 A. Delgado, D. Harrison, S. Hodgkin et al. GaiaAlerts GaiaAlerts 21:55:48.960 -17:48:56.88 2017-10-06 19:10:33.000 17.63 G-Gaia PSN Gaia17cny GaiaAlerts confirmed CV near very faint PanSTARRs source, aka AT2017gwx N
13755 2017-09-26 16:14:11 Jose Prieto J. L. Prieto for the ASAS-SN team ASAS-SN ASAS-SN 21:55:48.814 -17:48:56.52 2017-09-26 08:01:03.000 16.34 V-Johnson PSN ASASSN-17my ASAS-SN SN in faint host or CV. Rising, in 2 epochs. 2017TNSTR1035....1P N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
1245 2017-09-28 15:08:24 ePESSTO_Bot1 S.T. Hodgkin, K. Rybicki, M. Fraser, E. Callis, O. Yaron, N. Knezevic on behalf of ePESSTO ePESSTO CV 0 1 ePESSTO 2017TNSCR1539....1H
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
1249 2017-09-28 01:34:31 ESO-NTT / EFOSC2-NTT 600 S.T. Hodgkin, K. Rybicki M. Fraser, E. Callis ePESSTO tns_2017gwx_2017-09-28_01-34-31_ESO-NTT_EFOSC2-NTT_ePESSTO.asci tns_2017gwx_2017-09-28_01-34-31_ESO-NTT_EFOSC2-NTT_ePESSTO.fits Object
1236 2017-09-27 20:15:57 Jose Prieto J. L. Prieto (UDP), K. Boutsia (LCO), T. Holoien (Carnegie) ASAS-SN CV 1 ASAS-SN We obtained an optical spectrum of ASASSN-17my/AT2017gwx on UT 2017 Sep. 27.1 with IMACS (range 4100-9200 Angs.) mounted on the Magellan Baade 6.5m telescope at LCO. The spectrum shows a blue continuum with H-alpha (double-peaked), He I 5875 and He II 4686 in emission, and H-beta and H-gamma in absorption, all at z=0. This is consistent with a CV in outburst. 2017TNSCR1039....1P
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
1240 2017-09-27 02:22:36 Magellan-Baade / IMACS K. Boutsia ASAS-SN tns_2017gwx_2458023.59903_Magellan-Baade_IMACS_ASAS-SN.txt tns_2017gwx_2458023.59903_Magellan-Baade_IMACS_ASAS-SN.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 14019 of Group GaiaAlerts
Previous RA, DEC: 21:55:48.814, -17:48:56.52 (328.953392, -17.8157)
Updated RA, DEC: 21:55:48.960, -17:48:56.88 (328.954, -17.8158)