Possible new Be star HD58859 (gaia21bsw / AT 2021itq

Re: Possible new Be star HD58859 (gaia21bsw / AT 2021itq

Postby Robin Leadbeater » Tue Feb 22, 2022 2:02 pm

Hamish Barker wrote:Tom Love has also observed the same target with his alpy and rc12.


Spectra of stars like this which are potentially scientifically interesting but do not fall into the categories generally accepted in other databases (eg AAVSO,BeSS,ARAS) can still be submitted to the BAA spectroscopy database.
https://britastro.org/specdb/
where it is listed under HD58859

Cheers
Robin
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Re: Possible new Be star HD58859 (gaia21bsw / AT 2021itq

Postby Rainer Ehlert » Tue Feb 22, 2022 6:19 pm

Hi,

I have been reading this topic and tried my luck at this star at Bortle 6 sky.

Spectrograph LISA @23µm slit on a TOA 130 with 0.6x reducer.

26 images with 300 seconds exposure time, biased, darkened and flattened and instrument response corrected using Menkalinan star.


HD58859_300s_LISA_600mm-0026_BDF_NHSA_20220221_16bit.jpg
regards Rainer____Observatorio Real de 14_____MÉXICO_____N 22° W 101°
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Re: Possible new Be star HD58859 (gaia21bsw / AT 2021itq

Postby Hamish Barker » Tue Feb 22, 2022 10:15 pm

nice work Rainer! From the picture, it appears that an emission peak in the bottom of the Hbeta absorbtion is just visible. Would you mind forwarding the fits file to me so I can plot a comparison with all the other spectra? I'll send a direct message with my email address.

Cheers,
Hamish
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Re: Possible new Be star HD58859 (gaia21bsw / AT 2021itq

Postby Hamish Barker » Wed Feb 23, 2022 9:42 am

I checked with the TNS, Gaia Alerts and Asassn teams with regard to posting spectra on TNS, and have started a separate topic here so that it's visible to all not just in this HD58859 thread:
https://www.spectro-aras.com/forum/viewtopic.php?f=5&t=2932

Cheers,
Hamish
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