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SUMMARY:Testing surface-brightness–colour relations as a dust attenuatio
 n proxy with LSST\, JWST and HST
DTSTART;VALUE=DATE-TIME:20261020T081500Z
DTEND;VALUE=DATE-TIME:20261020T083000Z
DTSTAMP;VALUE=DATE-TIME:20261112T103450Z
UID:indico-contribution-2259@events.ncbj.gov.pl
DESCRIPTION:Speakers: Maja Wiśniewska (Narodowe Centrum Badań Jądrowych
 )\nA reliable dust attenuation estimate can be obtained from spectral ener
 gy distributions (SEDs) constructed over a wide range of wavelengths\, inc
 luding the ultraviolet (UV) and infrared (IR) regions. It is necessary to 
 account for dust attenuation in order to reliably extract galaxy propertie
 s\, such as the star formation rate (SFR)\, stellar ages and evolutionary 
 state. The Legacy Survey of Space and Time (LSST) will provide optical obs
 ervations of billions of objects. This creates a need for a dust attenuati
 on proxy that uses optical data only. There have been proposals for such m
 ethods\, but they still require verification from independent tracers. Thi
 s requires comparing the attenuation estimated from optical data alone wit
 h a reference attenuation estimate derived from broad-wavelength SED fitti
 ng\, including UV and IR data from auxiliary surveys. In this study\, we i
 nvestigate whether surface brightness and colour can predict dust attenuat
 ion. In our analysis\, we  combine observations from the James Webb Space 
 Telescope and Hubble Space Telescope with LSST observations in the overlap
 ping fields\, such as GOODS-South and COSMOS-Web\, restricting the sample 
 to (z \\sim 0.3).\n\nhttps://events.ncbj.gov.pl/event/502/contributions/22
 59/
LOCATION:
URL:https://events.ncbj.gov.pl/event/502/contributions/2259/
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