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XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk (2023)
Journal Article
Ramírez-Tannus, M. C., Bik, A., Cuijpers, L., Waters, R., Göppl, C., Henning, T., Kamp, I., Preibisch, T., Getman, K. V., Chaparro, G., Cuartas-Restrepo, P., de Koter, A., Feigelson, E. D., Grant, S. L., Haworth, T. J., Hernández, S., Kuhn, M. A., Perotti, G., Povich, M. S., Reiter, M., …van Terwisga, S. E. (2023). XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk. Astrophysical Journal Letters, 958(2), Article L30. https://doi.org/10.3847/2041-8213/ad03f8

We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, which focuses on the characterization of planet-forming disks in massive star-forming regions. These regions are likely representative of the... Read More about XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk.

A probable Keplerian disk feeding an optically revealed massive young star. (2023)
Journal Article
McLeod, A. F., Klaassen, P. D., Reiter, M., Henshaw, J., Kuiper, R., & Ginsburg, A. (2024). A probable Keplerian disk feeding an optically revealed massive young star. Nature, 625, 55-59. https://doi.org/10.1038/s41586-023-06790-2

The canonical picture of star formation involves disk-mediated accretion, with Keplerian accretion disks and associated bipolar jets primarily observed in nearby, low-mass young stellar objects (YSOs). Recently, rotating gaseous structures and Kepler... Read More about A probable Keplerian disk feeding an optically revealed massive young star..

Illuminating evaporating protostellar outflows: ERIS/SPIFFIER reveals the dissociation and ionization of HH 900 (2023)
Journal Article
Reiter, M., Haworth, T. J., Manara, C. F., Ramsay, S., Klaassen, P. D., Itrich, D., & McLeod, A. F. (2024). Illuminating evaporating protostellar outflows: ERIS/SPIFFIER reveals the dissociation and ionization of HH 900. Monthly Notices of the Royal Astronomical Society, 527(2), 3220–3230. https://doi.org/10.1093/mnras/stad3304

Protostellar jets and outflows are signposts of active star formation. In H II regions, molecular tracers like CO only reveal embedded portions of the outflow. Outside the natal cloud, outflows are dissociated, ionized, and eventually completely abla... Read More about Illuminating evaporating protostellar outflows: ERIS/SPIFFIER reveals the dissociation and ionization of HH 900.

Into the Mystic: ALMA ACA observations of the Mystic Mountains in Carina (2023)
Journal Article
Reiter, M., Klaassen, P. D., Moser-Fischer, L., McLeod, A. F., & Itrich, D. (2023). Into the Mystic: ALMA ACA observations of the Mystic Mountains in Carina. Monthly Notices of the Royal Astronomical Society, 526(1), 717–739. https://doi.org/10.1093/mnras/stad2750

We present new observations of the Mystic Mountains cloud complex in the Carina Nebula using the ALMA Atacama Compact Array (ACA) to quantify the impact of strong UV radiation on the structure and kinematics of the gas. Our Band 6 observations target... Read More about Into the Mystic: ALMA ACA observations of the Mystic Mountains in Carina.

Gas, dust, and the CO-to-molecular gas conversion factor in low-metallicity starbursts (2023)
Journal Article
Hunt, L. K., Belfiore, F., Lelli, F., Draine, B. T., Marasco, A., García-Burillo, S., …Mannucci, F. (2023). Gas, dust, and the CO-to-molecular gas conversion factor in low-metallicity starbursts. Astronomy & Astrophysics, 675, Article A64. https://doi.org/10.1051/0004-6361/202245805

The factor relating CO emission to molecular hydrogen column density, XCO, is still subject to uncertainty, in particular at low metallicity. In this paper, to quantify XCO at two different spatial resolutions, we exploited a dust-based method togeth... Read More about Gas, dust, and the CO-to-molecular gas conversion factor in low-metallicity starbursts.

Constraining the LyC escape fraction from LEGUS star clusters with SIGNALS H ii region observations: a pilot study of NGC 628 (2023)
Journal Article
Teh, J. W., Grasha, K., Krumholz, M. R., Battisti, A. J., Calzetti, D., Rousseau-Nepton, L., Rhea, C., Adamo, A., Kennicutt, R. C., Grebel, E. K., Cook, D. O., Combes, F., Messa, M., Linden, S. T., Klessen, R. S., Vilchez, J. M., Fumagalli, M., McLeod, A., Smith, L. J., Chemin, L., …Boselli, A. (2023). Constraining the LyC escape fraction from LEGUS star clusters with SIGNALS H ii region observations: a pilot study of NGC 628. Monthly Notices of the Royal Astronomical Society, 524(1), 1191-1210. https://doi.org/10.1093/mnras/stad1780

A spectacular jet from the bright 244–440 Orion proplyd: The MUSE NFM view (2023)
Journal Article
Kirwan, A., Manara, C. F., Whelan, E. T., Robberto, M., McLeod, A. F., Facchini, S., Beccari, G., Miotello, A., Schneider, P. C., Murphy, A., & Vicente, S. (2023). A spectacular jet from the bright 244–440 Orion proplyd: The MUSE NFM view. Astronomy & Astrophysics, 673, 1-15. https://doi.org/10.1051/0004-6361/202245428

In this work we present the highest spatial and spectral resolution integral field observations to date of the bipolar jet from the Orion proplyd 244–440 using Multi-Unit Spectroscopic Explorer (MUSE) narrow-field mode (NFM) observations on the Very... Read More about A spectacular jet from the bright 244–440 Orion proplyd: The MUSE NFM view.

Bringing Stellar Evolution and Feedback Together: Summary of Proposals from the Lorentz Center Workshop (2023)
Journal Article
Geen, S., Agrawal, P., Crowther, P. A., Keller, B., de Koter, A., Keszthelyi, Z., van de Voort, F., Ali, A. A., Backs, F., Bonne, L., Brugaletta, V., Derkink, A., Ekström, S., Fichtner, Y. A., Grassitelli, L., Götberg, Y., Higgins, E. R., Laplace, E., You Liow, K., Lorenzo, M., …Winch, E. (2023). Bringing Stellar Evolution and Feedback Together: Summary of Proposals from the Lorentz Center Workshop. Publications of the Astronomical Society of the Pacific, 135(1044), Article 021001. https://doi.org/10.1088/1538-3873/acb6b5

Stars strongly impact their environment, and shape structures on all scales throughout the universe, in a process known as "feedback." Due to the complexity of both stellar evolution and the physics of larger astrophysical structures, there remain ma... Read More about Bringing Stellar Evolution and Feedback Together: Summary of Proposals from the Lorentz Center Workshop.

A machine learning approach to galactic emission-line region classification (2023)
Journal Article
Rhea, C. L., Rousseau-Nepton, L., Moumen, I., Prunet, S., Hlavacek-Larrondo, J., Grasha, K., …Chemin, L. (2023). A machine learning approach to galactic emission-line region classification. RAS Techniques and Instruments, 2(1), 345-359. https://doi.org/10.1093/rasti/rzad023

Diagnostic diagrams of emission-line ratios have been used extensively to categorize extragalactic emission regions; however, these diagnostics are occasionally at odds with each other due to differing definitions. In this work, we study the applicab... Read More about A machine learning approach to galactic emission-line region classification.