elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Barrierefreiheit | Kontakt | English
Schriftgröße: [-] Text [+]

High-Resolution Infrared Spectroscopy of N2O and SO2 Broadened by Helium to Assist in Analysis of Exoplanetary Atmospheres

Singh, Himanshi und Schöller, Laura und Spezzano, Silvia und Caselli, Paola und Röske, Christian und Birk, Manfred und Wagner, Georg (2025) High-Resolution Infrared Spectroscopy of N2O and SO2 Broadened by Helium to Assist in Analysis of Exoplanetary Atmospheres. 29th Colloquium on High-Resolution Molecular Spectroscopy, 2025-08-25 - 2025-08-29, Cologne, Germany.

Dieses Archiv kann nicht den Volltext zur Verfügung stellen.

Offizielle URL: https://hrms2025.astro.uni-koeln.de/wp-content/uploads/2025/08/AbstractsHRMS.pdf

Kurzfassung

The James Webb Space Telescope (JWST), launched in 2021, as well as the next generation telescopes like Extremely Large Telescope (ELT), ARIEL, and GRAVITY+, will collect high resolution spectral data of exoplanetary atmospheres with high sensitivity, covering the near to mid-IR, and optical regions of the electromagnetic spectrum. The interpretation of these spectra requires accurate line modeling based on reference laboratory data, including transition frequencies, line intensities, and broadening parameters along with their temperature dependence. These molecular parameters are available in databases such as HITRAN [1,2] and EXOMOL [3] to aid in modeling and interpreting the spectra of planetary atmospheres. However, many key parameters in these spectral catalogs remain incomplete. In particular, pressure and temperature dependent broadening parameters of several molecules relevant to exoplanetary atmospheres, such as, N2O, SO2, and OCS, in He-, H2-, and CO2-dominated environments are limited. For example, previous experimental work on the pressure broadening of N2O by He, reported by Tasinato et al. [4] and by Nakayama et al. [5], is not enough to allow a fit to build a sufficient model for it [6]. Therefore, it becomes essential to have a complete set of pressure and temperature based broadening parameters for such molecules in foreign broadening gases. In this study, we present high-resolution infrared measurements of N2O and SO2 broadened by He. N2O is a potential biosignature gas, while SO2 is one of the photochemical products that was also recently identified in exoplanetary atmospheres, e.g. WASP39-b [7,8]. Using a Bruker IFS 120/5HR spectrometer with a spectral resolution of 0.002 cm-1, we investigate the pressure broadening effects of He on N2O, and SO2 at room temperature, with pressures up to 1000 mbar. These measurements aim to enhance existing spectral databases and support the accurate characterization of exoplanetary atmospheres. [1] Gordon, I. E., Rothman, L. S., Hargreaves, E. R., Hashemi, R., Karlovets, E. V., Skinner, F. M., Conway, E.K., et al., 2022 J. Quant. Spectrosc. Radiat. Transfer, 277, 107949 [2] Tan, Y., Skinner, F. M., Samuels, S., Hargreaves, R. J., Hashemi, R., and Gordon, I. E. 2022 The Astrophysical Journal Supplement Series 262(2), 40 [3] Tennyson, J., Yurchenko, S.N., Zhang, J., Bowesman, C.A., Brady, R.P., Buldyreva, J., Chubb, K.L., Gamache, R.R., Gorman, M.N., Guest, E.R. and Hill, C., 2024 J. Quant. Spectrosc. Radiat. Transfer, 326, 109083 [4] Tasinato, N., Hay, K. G., Langford, N., Duxbury, G., & Wilson, D., 2010 J. Chem. Phys., 132, 16 [5] Nakayama, T., Fukuda, H., Sugita, A., Hashimoto, S., Kawasaki, M., Aloisio, S., Morino, I. and Inoue, G., 2007 Chem. Phys., 334(1-3), pp.196-203 [6] Tan, Y., Skinner, F. M., Samuels, S., Hargreaves, R. J., Hashemi, R., and Gordon, I. E. 2022 The Astrophysical Journal Supplement Series 262(2), 40 [7] Rustamkulov, Z., Sing, D.K., Mukherjee, S., May, E.M., Kirk, J., Schlawin, E., Line, M.R., Piaulet, C., Carter, A.L., Batalha, N.E. and Goyal, J.M., 2023 Nature, 614, 7949 [8] Alderson, L., Wakeford, H.R., Alam, M.K., Batalha, N.E., Lothringer, J.D., Adams Redai, J., Barat, S., Brande, J., Damiano, M., Daylan, T. and Espinoza, N., 2023 Nature, 614, 7949

elib-URL des Eintrags:https://elib.dlr.de/216158/
Dokumentart:Konferenzbeitrag (Poster)
Titel:High-Resolution Infrared Spectroscopy of N2O and SO2 Broadened by Helium to Assist in Analysis of Exoplanetary Atmospheres
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Singh, HimanshiThe Center for Astrochemical Studies, Max-Planck-Institut für extraterrestrische Physik, Garching, GermanyNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schöller, LauraThe Center for Astrochemical Studies, Max-Planck-Institut für extraterrestrische Physik, Garching, GermanyNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Spezzano, SilviaThe Center for Astrochemical Studies, Max-Planck-Institut für extraterrestrische Physik, Garching, GermanyNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Caselli, PaolaThe Center for Astrochemical Studies, Max-Planck-Institut für extraterrestrische Physik, Garching, GermanyNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Röske, ChristianChristian.Roeske (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Birk, ManfredManfred.Birk (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Wagner, GeorgGeorg.Wagner (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:25 August 2025
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Infrared Spectroscopy FTS Exoplanet Atmosphere N2O SO2 broadened Helium
Veranstaltungstitel:29th Colloquium on High-Resolution Molecular Spectroscopy
Veranstaltungsort:Cologne, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:25 August 2025
Veranstaltungsende:29 August 2025
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Spektroskopische Verfahren der Atmosphäre
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung > Atmosphärenprozessoren
Hinterlegt von: Röske, Christian
Hinterlegt am:05 Sep 2025 09:52
Letzte Änderung:05 Sep 2025 09:52

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
OpenAIRE Validator logo electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.