Search found 1980 matches

by Robin Leadbeater
Sat Jul 26, 2025 1:00 pm
Forum: Be Stars survey
Topic: Call for monitoring of Be/X-ray binary X Per
Replies: 20
Views: 33224

Re: Call for monitoring of Be/X-ray binary X Per

A similar request for monitoring X Per had been received from Alexander Salganik University of Turku so it looks like there is some interest in this object again. See
https://www.spectro-aras.com/forum/viewtopic.php?t=3186

Cheers
Robin
by Robin Leadbeater
Sat Jul 26, 2025 12:57 pm
Forum: Miscellanous
Topic: Call for spectroscopic monitoring of X Per 2025 - Alexander Salganik
Replies: 0
Views: 31

Call for spectroscopic monitoring of X Per 2025 - Alexander Salganik

I have received a request from Alexander Salganik University of Turku for long term spectroscopic monitoring of the X Ray Binary X Per which I am relaying to the various spectroscopy groups. It is similar monitoring to that requested by Paul Roche which covered mainly 2018-2021 and was reported on ...
by Robin Leadbeater
Fri Jul 25, 2025 9:53 pm
Forum: Novae
Topic: Nova Ser 2025
Replies: 6
Views: 430

Re: Nova Ser 2025

An ALPY 600 spectrum from last night
v691ser_20250724_953_Leadbeater.png
v691ser_20250724_953_Leadbeater.png (50.23 KiB) Viewed 192 times
Cheers
Robin
by Robin Leadbeater
Mon Apr 14, 2025 10:59 am
Forum: Spectroscopes and Softwares
Topic: airmass
Replies: 3
Views: 3316

Re: airmass

I have used this excellent resource for many years to plan my observations of new transients and view the target field and details in SIMBAD. The author is a professional astronomer and responsive to suggestions of additions/improvements.

Cheers
Robin
by Robin Leadbeater
Fri Apr 11, 2025 12:25 pm
Forum: Be Stars survey
Topic: Call for monitoring Be stars in the TESS sectors
Replies: 95
Views: 177915

Re: Call for monitoring Be stars in the TESS sectors

A paper including observations during this continuing campaign has been published today
"The birth of Be star disks I. From localized ejection to circularization"
https://arxiv.org/abs/2504.07571

Cheers
Robin
by Robin Leadbeater
Sun Feb 16, 2025 10:37 pm
Forum: Symbiotic Stars
Topic: T CrB before its new nova event
Replies: 42
Views: 83181

Re: T CrB before its new nova event

And yet another prediction ATel using my high resolution H alpha spectrum from the ARAS database. (I have no connection with the authors)
https://www.astronomerstelegram.org/?read=17041
"T CrB on the Verge of an Outburst"
I think they should have at least added a question mark ;-)

Cheers
Robin
by Robin Leadbeater
Sun Jan 05, 2025 12:37 pm
Forum: Software ISIS
Topic: FWHM in ISIS
Replies: 1
Views: 4418

Re: FWHM in ISIS

Double left click either end of the region of interest
by Robin Leadbeater
Mon Dec 23, 2024 6:52 pm
Forum: Spectroscopes and Softwares
Topic: eShel merged orders issue
Replies: 4
Views: 7377

Re: eShel merged orders issue

Hi Paul,

I don't know the cause but It seems to me that it is not a stitching problem but a problem with the individual orders which show flip ups at the edges. The stitching is trying its best to fit to include those edge effects. A problem with the blaze profile in those regions ?

Cheers
Robin
by Robin Leadbeater
Thu Dec 12, 2024 3:18 pm
Forum: Spectroscopes and Softwares
Topic: POLARIMETER DEVICE PROJECT
Replies: 54
Views: 69134

Re: POLARIMETER DEVICE PROJECT

Joan Guarro Flo wrote: Mon Dec 09, 2024 1:23 pm Hello,

Seconds Gary Cole found making a test with a HD204827 star observation, The Giver works well.

You can see the results here.

Cheers, Joan.
A great result after a hard project
Congratulations !

Cheers
Robin
by Robin Leadbeater
Sun Dec 01, 2024 2:43 pm
Forum: Spectroscopes and Softwares
Topic: eShel calibration set-up
Replies: 9
Views: 12071

Re: eShel calibration set-up


James,

I can't see your images either.


I have seen this kind of problem before. I think it is a browser security setting that prevents displaying images hosted elsewhere on a non secure (ie not https) site. For example this is the address of one of the images
http://astroimage.info/files/Vega ...