Marjorie Decleir Intro-talk @ ISM group meeting May 23rd 2022 My research in a nutshell 

Lichtervelde Gent Who am I and where do I come from? 2 

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B.S. in Physics and Astronomy (2013) M.S. in Physics and Astronomy (2015) PhD in Astronomy (November 2019) Supervisors: Maarten Baes, Ilse De Looze + Médéric Boquien (Chile) Postdoc at STScI (Nov 2019 - …) Supervisor: Karl Gordon Who am I and where do I come from? Dust, dust, dust, dust, dust,… 5 

The average NIR Milky Way extinction curve can be represented by a power law Dust extinction is not uniform across the Milky Way, but depends on R(V) The telluric absorption complicates the features JWST to the rescue! extinction wavelength (µm) extinction wavelength (µm) extinction wavelength (µm) Decleir et al. (2022): https://iopscience.iop.org/article/1 0.3847/1538-4357/ac5dbe Discovery talk May 3 6 

Bachelor’s project Spectroscopy with the eShel-spectrograph Optical spectra of Jupiter and stars to measure their composition B A M O 1992 >>>> 2013 7 

Summer internship in Serbia Classification of SDSS galaxies >>>> 1992 >>>> 2013 Calculated flux ratios of emission lines in galaxy spectra to classify the galaxy with the BPT diagram BPT = Baldwin, Phillips & Terlevich Using SDSS archive 8 

wavelength (µm) flux Master’s thesis Stars and dust in the edge-on spiral galaxies NGC 5866 and NGC 5746 9 Fit radiative transfer models to optical images of galaxies to derive their stellar and dust geometry Use models to predict UV-IR SED, and compare to data 1992 >>>> 2013 Dust emission excess 2015 

wavelength (Å) attenuation PhD thesis DustKING – Revealing the dust attenuation in nearby galaxies SED fitting with Cigale to measure dust attenuation curves on resolved scales in NGC628, and on global scales for all KINGFISH galaxies 10 10 1992 >>>> 2013 2015 2019 slope bump Decleir et al. 2019 bump slope attenuation wavelength (Å) 

Current and upcoming projects GO 2459 Decleir et al. GO 16285 Decleir et al. GO 2183 Zeegers et al. 11 11 1992 >>>> 2013 2015 2019 2022 Mgii (1239 ˚ A) velocity (km/s) wavelength (µm) extinction …