Imaging of I Zw 18 by JWST. I. Detecting Dusty Stellar Populations

Autor: Alec S. Hirschauer, Nicolas Crouzet, Nolan Habel, Laura Lenkić, Conor Nally, Olivia C. Jones, Giacomo Bortolini, Martha L. Boyer, Kay Justtanont, Margaret Meixner, Göran Östlin, Gillian S. Wright, Ruyman Azzollini, Joris A. D. L. Blommaert, Bernhard Brandl, Leen Decin, Omnarayani Nayak, Pierre Royer, B. A. Sargent, Paul van der Werf

Publikováno v: The Astronomical Journal, Vol 168, Iss 1, p 23 (2024)

We present a JWST imaging survey of I Zw 18, the archetypal extremely metal-poor, star-forming (SF), blue compact dwarf galaxy. With an oxygen abundance of only ∼3% Z _⊙ , it is among the lowest-metallicity systems known in the local Universe, an

Externí odkaz: https://doaj.org/article/9e2728617aec4dfc8557fc0ee93a8fa7

Buckyball-metal Complexes as Potential Carriers of Astronomical Unidentified Infrared Emission Bands

Autor: Gao-Lei Hou, Olga V. Lushchikova, Joost M. Bakker, Peter Lievens, Leen Decin, Ewald Janssens

Publikováno v: The Astrophysical Journal, Vol 952, Iss 1, p 13 (2023)

Efforts over 40 yr still leave the source of astronomical infrared emission bands largely unidentified. Here, we report the first laboratory infrared (6–25 μ m) spectra of gas-phase fullerene-metal complexes, [C _60 -Metal] ^+ (Metal = Fe, V) and

Externí odkaz: https://doaj.org/article/f1df54f123e64d69835d56e6cbbf71be

Molecular Data Needs for Modelling AGB Stellar Winds and Other Molecular Environments

Autor: Taïssa Danilovich, Leen Decin, Marie Van de Sande

Publikováno v: Galaxies, Vol 6, Iss 3, p 86 (2018)

The modern era of highly sensitive telescopes is enabling the detection of more and more molecular species in various astronomical environments. Many of these are now being carefully examined for the first time. However, to move beyond detection to m

Externí odkaz: https://doaj.org/article/f006fe9a0a364c6eb2c648547b968426

Stratospheric dayside-to-nightside circulation responsible for nightside ozone hotspots on tidally-locked exoplanets

Autor: Marrick Braam, Paul Palmer, Leen Decin

Interpreting atmospheric spectra of exoplanets requires understanding the underlying atmospheric physics and chemistry. Studies have previously shown that for tidally locked, Earth-like exoplanets that orbit M-dwarf stars, photochemistry supports a h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4e04f92315da53f649f3f9c457e797b
https://doi.org/10.5194/egusphere-egu23-15501

Experimental and theoretical study of the low-temperature kinetics of the reaction of CN with CH2O and implications for interstellar environments

Autor: Niclas A. West, Lok Hin Desmond Li, Tom J. Millar, Marie Van de Sande, Edward Rutter, Mark A. Blitz, Julia H. Lehman, Leen Decin, Dwayne E. Heard

Publikováno v: West, N A, Li, L H D, Millar, T J, Van de Sande, M, Rutter, E, Blitz, M A, Lehman, J H, Decin, L & Heard, D E 2023, ' Experimental and theoretical study of the low-temperature kinetics of the reaction of CN with CH 2 O and implications for interstellar environments ', Physical Chemistry Chemical Physics, vol. 25, no. 11, pp. 7719-7733 . https://doi.org/10.1039/d2cp05043a

Rate coefficients for the reaction of CN with CH2O were measured for the first time below room temperature in the range 32-103 K using a pulsed Laval nozzle apparatus together with the Pulsed Laser Photolysis-Laser-Induced Fluorescence technique. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::312b301c85a934602b20eaed5cf5b884
https://pure.qub.ac.uk/en/publications/f98bf6e5-32bf-4715-af2a-764e9b6e4437