ELFT HÍRADÓ

[Krisztián Vida <vidakris AT konkoly.hu>]

 Szemináriumi meghívó / Invitation to a seminar
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CSFK CSI SZEMINÁRIUM / KONKOLY OBSERVATORY SEMINAR

Date: Oct 19, 2023 (Thursday) 14:00


Dorota Skowron (Astronomical Observatory of the University of Warsaw):
Reddening Maps of the Large and Small Magellanic Cloud based on OGLE-IV Red 
Clump Stars

I will present the most extensive and detailed reddening maps of the 
Magellanic Clouds derived from the color properties of Red Clump stars. The 
analysis is based on the deep photometric maps from the fourth phase of the 
Optical Gravitational Lensing Experiment (OGLE-IV), covering approximately 
670 deg2 of the sky in the Magellanic System region. We refined methods of 
calculating the RC color to obtain the highest possible accuracy of reddening 
maps based on RC stars. Using spectroscopy of red giants, we found the 
metallicity gradient in both MCs, which causes a slight decrease of the 
intrinsic RC color with distance from the galaxy center of about 0.002 
mag/deg in the LMC and between 0.003 and 0.009 mag/deg in the SMC.



The seminar will be held 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



Everyone is welcome!

Krisztián Vida, Ramon Brasser
organizers
https://konkoly.hu/szeminariumok

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