Weird Squares in continuum of V442 And

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Re: Weird Squares in continuum of V442 And

Postby James Foster » Mon Oct 09, 2017 10:13 am

To: Christian,

I did another spectra of V442 And, different telescope but similar exposure and did not see these artifacts.....will post the spectra shortly.

Btw, this link on your Isis update history page for the ELODIE 3.1 data base gives a 404 error; see
http://astrophy.u-bordeaux.fr/m2a/soubiran/download.htmlhttp:/www.obs.u-bordeaux1.fr/m2a/soubiran/download.html

James
James R. Foster
Lhires III (2400 & 1800 ln/mm Grat) Spectroscope,
LISA Visual & IR Kit Spectroscope, and
Star Analyzer 200
James Foster
 
Posts: 163
Joined: Sun Jan 24, 2016 7:14 am

Re: Weird Squares in continuum of V442 And

Postby Robin Leadbeater » Mon Oct 09, 2017 1:12 pm

The ELODIE 3.1 download page can now be found here
http://perso.astrophy.u-bordeaux.fr/CSo ... nload.html

I have also edited the original post on ELODIE 3.1 with the new link
viewtopic.php?f=8&t=1369&p=6195#p6195

Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
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Re: Weird Squares in continuum of V442 And

Postby James Foster » Tue Oct 10, 2017 7:27 pm

Thanks for the ELODIE 3.1 link Robin!
Which of the following should we use?

The full datasets can be retrieved :

Physical parameters measured on the spectra :
http://www-obs.univ-lyon1.fr/labo/perso ... e_meas.dat
Description of the content and format of table_meas.dat : README

Full set of spectra at high resolution (R=42000) :
http://www-obs.univ-lyon1.fr/labo/perso ... _23.tar.gz

Full set of spectra at medium resolution (R=10000) :
http://www-obs.univ-lyon1.fr/labo/perso ... _23.tar.gz

I do not wish to download a set of humongous spectra which I could never match in resolution with the LhiresIII.

James
James R. Foster
Lhires III (2400 & 1800 ln/mm Grat) Spectroscope,
LISA Visual & IR Kit Spectroscope, and
Star Analyzer 200
James Foster
 
Posts: 163
Joined: Sun Jan 24, 2016 7:14 am

Re: Weird Squares in continuum of V442 And

Postby James Foster » Wed Oct 11, 2017 12:37 am

Here is my new V0442 And spectra taken on 08Oct17 with CDK17 telescope and LISA spectroscope from home (Los Angeles, CA at 148m elevation):
Image

9x35 sec exposures, 2x2 bin with Atik 460ex CCD at -5 temp guided with Atik Titan guider using 23 micron slit. IR response against Miles star HD000400.
All electrical components were powered by mains (AC-to-DC) and no strange squares seen in the continuum. Issue fixed hopefully.

James
James R. Foster
Lhires III (2400 & 1800 ln/mm Grat) Spectroscope,
LISA Visual & IR Kit Spectroscope, and
Star Analyzer 200
James Foster
 
Posts: 163
Joined: Sun Jan 24, 2016 7:14 am

Re: Weird Squares in continuum of V442 And

Postby Robin Leadbeater » Wed Oct 11, 2017 4:08 pm

Hi James,

James Foster wrote:Thanks for the ELODIE 3.1 link Robin!
Which of the following should we use?

The full datasets can be retrieved :

Physical parameters measured on the spectra :
http://www-obs.univ-lyon1.fr/labo/perso ... e_meas.dat
Description of the content and format of table_meas.dat : README

Full set of spectra at high resolution (R=42000) :
http://www-obs.univ-lyon1.fr/labo/perso ... _23.tar.gz

Full set of spectra at medium resolution (R=10000) :
http://www-obs.univ-lyon1.fr/labo/perso ... _23.tar.gz

I do not wish to download a set of humongous spectra which I could never match in resolution with the LhiresIII.

James


You could use either resolution but I am currently using the R=10000 set. It is a bit lower than the maximum the LHIRES can reach but enough to give a good instrument response. If you want to integrate them into ISIS using the "mybase" function you also need to download the table so you can generate the file mybase.lst that ISIS uses to reference them. (Note that the continuum is not well calibrated below ~4000A in these spectra)

Cheers
Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
Robin Leadbeater
 
Posts: 934
Joined: Mon Sep 26, 2011 4:41 pm

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