SN 2022hrs bright in NGC4647

Re: SN 2022hrs bright in NGC4647

Postby Joan Guarro Flo » Sat May 07, 2022 4:54 pm

Hola Juan José,

Really to observe any 13 magnitude star is not very useful to make it with an echelle, you know, with our telescope sizes using low resolution it is better to observe these objects.

On the other hand, just in case, it's a practical example of what I can make with my current equipment.

Muchas gracias por tú interés.

Saludos, Joan.
Joan Guarro Flo
 
Posts: 584
Joined: Thu Nov 03, 2011 8:50 pm

Re: SN 2022hrs bright in NGC4647

Postby Christophe Boussin » Tue May 10, 2022 10:36 pm

Hello all,

This is my first attempt to get a supernova spectrum !
The spectrum is unfortunately noisy but it seems to me that it shows some changes compared to the first spectra in this post...?
Many thanks to Joan Guarro Flo for sharing the files of his incredible echelle spectrum of SN 2022hrs !!
He convinced me of the reality of the overall shape of my spectrum !

Here is my spectrum of SN 2022hrs obtained with my Alpy 600 the 7th of May at 22 h 06 TU (resolution of 526, JJ = 2459707.4206) and an acquisition time of 30 min s (3 x 600 s) :

_sn2022hrs_20220507_921_Christophe Boussin_3800_7560.png
SN 2022hrs on May 7th, 2022
_sn2022hrs_20220507_921_Christophe Boussin_3800_7560.png (86.49 KiB) Viewed 1164 times

It's mind blowing to think this is the spectrum of a "single star" in another galaxy...clear skies to all !!

Christophe BOUSSIN
CBO (Newton 200 F/5 / Alpy600 / Atik 314L+ / Atik Titan + Mewlon 180 F/12 / LHIRES III 2400 / Atik 460EX / Atik 314 L+) @ ARAS database
Christophe Boussin
 
Posts: 164
Joined: Sun Aug 21, 2016 6:04 pm

Re: SN 2022hrs bright in NGC4647

Postby Robin Leadbeater » Wed May 11, 2022 5:03 pm

Congratulations on your first supernovae Christophe! Here are my spectra so far in the BAA database
https://britastro.org/specdb/data_graph ... end_pos=ne
You can download them from the database and compare them with yours if you like
https://britastro.org/specdb
Notice how the absorption features are moving to the red as we the slower ejected material deeper in the explosion

Cheers
Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
Robin Leadbeater
 
Posts: 1874
Joined: Mon Sep 26, 2011 4:41 pm

Re: SN 2022hrs bright in NGC4647

Postby etienne bertrand » Wed May 11, 2022 10:31 pm

Yes Robin you thru !
V ejec = ((6107-6355)/6355) xc) -1409
V ejec = 13 108 km/s [+/- some mistake] lol :D

Thanks Robin.

Hello Benji, tu as pu réparer ta monture ? Il te faut faire chauffer le Lhires, l'été arrive et RR Lyr présente le bout de son nez maintenant.. ;)
etienne bertrand
 
Posts: 1033
Joined: Mon Aug 31, 2015 11:26 am

Re: SN 2022hrs bright in NGC4647

Postby Christophe Boussin » Thu May 12, 2022 7:25 am

Thanks Robin !
I downloaded your spectra and compared the one of May 4 with Joan Guarro Flo's (May 5) and mine (May 7): they are in good agreement....except the resolution of course ;) !
Very interesting to see the evolution of the velocity from your spectra : thanks for sharing !
Let's hope we can continue the monitoring of this supernova !

Christophe
CBO (Newton 200 F/5 / Alpy600 / Atik 314L+ / Atik Titan + Mewlon 180 F/12 / LHIRES III 2400 / Atik 460EX / Atik 314 L+) @ ARAS database
Christophe Boussin
 
Posts: 164
Joined: Sun Aug 21, 2016 6:04 pm

Previous

Return to Supernovae

Who is online

Users browsing this forum: No registered users and 1 guest

cron

x