SN2017gxq in NGC 4964

Information about outbursts of eruptive stars, Be activity, ...
Post Reply
Robin Leadbeater
Posts: 1926
Joined: Mon Sep 26, 2011 4:41 pm
Contact:

SN2017gxq in NGC 4964

Post by Robin Leadbeater »

Type 1a
https://wis-tns.weizmann.ac.il/object/2017gxq
_at2017gxq_20170930_812_gelatoplot.png
_at2017gxq_20170930_812_gelatoplot.png (43.66 KiB) Viewed 5409 times
This was discovered by Gaia on 28th at mag 17 but was much brighter last night (~mag 15 or perhaps brighter) last night when I took the spectrum and is still likely to be a few days from max so would be a good early evening standard ALPY candidate.

Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
Robin Leadbeater
Posts: 1926
Joined: Mon Sep 26, 2011 4:41 pm
Contact:

Re: SN2017gxq in NGC 4964

Post by Robin Leadbeater »

I just heard that my classification triggered SWIFT observations last night by a team who are following up all nearby 1a supernovae :-)

Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
etienne bertrand
Posts: 1040
Joined: Mon Aug 31, 2015 11:26 am

Re: SN2017gxq in NGC 4964

Post by etienne bertrand »

Super belle découverte et beau spectre !!
Robin Leadbeater
Posts: 1926
Joined: Mon Sep 26, 2011 4:41 pm
Contact:

Re: SN2017gxq in NGC 4964

Post by Robin Leadbeater »

Now near maximum at a reported ~mag 14

Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
Robin Leadbeater
Posts: 1926
Joined: Mon Sep 26, 2011 4:41 pm
Contact:

Re: SN2017gxq in NGC 4964

Post by Robin Leadbeater »

Spectrum from last night with standard ALPY 600 compared with SNID best fit which predicts it is just past maximum
sn2017gxq_20171005_SNID.png
sn2017gxq_20171005_SNID.png (39.26 KiB) Viewed 5269 times
Not a difficult target despite the full moon and low altitude at ~35deg (9x600s)

Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
Post Reply