ELFT HÍRADÓ

[Ramon Brasser <rbrasser AT konkoly.hu>]

Dear All,

Today's seminar is an unofficial pilot programme in an effort to recruit young researchers to give seminars and improve their speaking 
skills.

As such, we the organisers, would appreciate you attending in person and 
providing *constructive* feedback.

Best wishes,
Krisztián Vida and Ramon Brasser

vidakris AT konkoly.hu:
> Dear colleagues,
>
> There is a seminar talk soon (14:00) at the real & virtual Detre hall:
>
>
> Csilla Kalup (Konkoly Observatory; Hungary):
>
>
> Asteroseismic masses of red giant and RR Lyrae stars in K2 globular clusters
>
> Globular clusters offer us unique opportunities to better understand both 
> stellar and galactic evolution. Since they contain stars with roughly the 
> same physical properties such as distance, age and chemical composition, they 
> provide homogeneous samples for cluster-by-cluster comparisons. And since 
> variable stars within the clusters allow insights into the stellar structure 
> and properties, the different stages of stellar evolution can be probed by 
> asteroseismology.
> Space observatories, such as the Kepler space telescope, deliver high quality 
> and uninterrupted measurements suitable for studying stellar pulsation. 
> During the K2 mission of Kepler, several globular clusters were observed. 
> However, due to their high stellar density and proximity to the Galactic 
> bulge, the photometry of these crowded field is challenging and requires 
> special procedures to investigate.
> In my presentation, I will review all the recent results related to K2 
> globular clusters and present new results on a metal-poor K2 cluster, NGC 
> 5897. During the talk, I will focus on red giant and RR Lyrae seismology, and 
> how we can derive stellar masses from them using Gaia and Kepler data. I will 
> also highlight our latest results on the first direct comparison of seismic 
> masses of RR Lyrae stars to red horizontal branch stars in the same stellar 
> population.
>
>
> The seminar will be held live in the Detre hall with audience, but also 
> streamed online via Zoom. If you are unable to attend the presentation in 
> person, you can join us via this link
> https://us06web.zoom.us/j/82806911982?pwd=SVZpT0syQ1J6dHBvSkF4N2dXNEQ0dz09
> or the meeting ID: 828 0691 1982 and passcode: 206265
>
> Cheers,
>
> K.

--
'Cutting-edge researchers can only exist in a country if behind them there is 
a standing army of researchers who are
less visible to the outside world, but who are on par with them in terms of 
scientific preparation.' - Gábor Lente