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What is this in IC 1805?, 



    
        

            Samuel

What is this in IC 1805?

Getting plate-solving status, please wait...
What is this in IC 1805?, 



    
        

            Samuel

What is this in IC 1805?

Technical card

Imaging telescopes or lenses: TS-Optics TS 100 Quadruplet

Imaging cameras: Atik 460 EXm


Dates:Oct. 10, 2017

Frames: 44x600" (7h 20')

Integration: 7h 20'

Avg. Moon age: 19.94 days

Avg. Moon phase: 72.60%


Basic astrometry details

Astrometry.net job: 1843811


Resolution: 2749x2199

Locations: Observatorio remoto Tomas Lopez en AstroCamp, Nerpio, Albacete, Spain

Data source: Own remote observatory

Remote source: AstroCamp

Description

Can someone tell me what this is?

WeBo 1 (PN G135.6+01.0), a previously unrecognized planetary nebula with a remarkable thin-ring morphology, was discovered serendipitously on Digitized Sky Survey images. The central star is found to be a late-type giant with overabundances of carbon and s-process elements. The giant is chromospherically active and photometrically variable, with a probable period of 4.7 days; this suggests that the star is spotted, and that 4.7 days is its rotation period. We propose a scenario in which one component of a binary system became an asymptotic giant branch (AGB) star with a dense stellar wind enriched in C and s-process elements; a portion of the wind was accreted by the companion, contaminating its atmosphere and spinning up its rotation. The AGB star has now become a hot subdwarf, leaving the optical companion as a freshly contaminated barium star inside an ionized planetary nebula.

Comments

Histogram

What is this in IC 1805?, 



    
        

            Samuel