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Dr Anna McLeod's Outputs (53)

An Investigation of Disk Thickness in M51 from H α, Pa α, and Mid-infrared Power Spectra (2025)
Journal Article
Elmegreen, B. G., Calzetti, D., Adamo, A., Sandstrom, K., Dale, D., Bajaj, V., Boyer, M. L., Duarte-Cabral, A., Chown, R., Correnti, M., Dalcanton, J. J., Draine, B. T., Gaches, B., Gallagher, J. S., Grasha, K., Gregg, B., Hunt, L. K., Johnson, K. E., Kennicutt, R., Klessen, R. S., …Weinbeck, T. D. (2025). An Investigation of Disk Thickness in M51 from H α, Pa α, and Mid-infrared Power Spectra. The Astrophysical Journal, 986(1), Article 13. https://doi.org/10.3847/1538-4357/adcee6

Power spectra (PS) of high-resolution images of M51 (NGC 5194) taken with the Hubble Space Telescope and the James Webb Space Telescope (JWST) have been examined for evidence of disk thickness in the form of a change in slope between large scales, wh... Read More about An Investigation of Disk Thickness in M51 from H α, Pa α, and Mid-infrared Power Spectra.

X-Shooting ULLYSES: Massive stars at low metallicity: X. Physical parameters and feedback of massive stars in the LMC N11 B star-forming region (2025)
Journal Article
Gómez-González, V. M., Oskinova, L. M., Hamann, W. R., Todt, H., Pauli, D., Reyero Serantes, S., Bernini-Peron, M., Sander, A. A., Ramachandran, V., Vink, J. S., Crowther, P. A., Berlanas, S. R., Ud-Doula, A., Gormaz-Matamala, A. C., Kehrig, C., Kuiper, R., Leitherer, C., Mahy, L., McLeod, A. F., Mehner, A., …Wofford, A. (2025). X-Shooting ULLYSES: Massive stars at low metallicity: X. Physical parameters and feedback of massive stars in the LMC N11 B star-forming region. Astronomy & Astrophysics, 695, Article A197. https://doi.org/10.1051/0004-6361/202451366

Massive stars drive the ionization and mechanical feedback within young star-forming regions. The Large Magellanic Cloud (LMC) is an ideal galaxy for studying individual massive stars and quantifying their feedback contribution to the environment. We... Read More about X-Shooting ULLYSES: Massive stars at low metallicity: X. Physical parameters and feedback of massive stars in the LMC N11 B star-forming region.

Into the Mystic: the MUSE view of the ionized gas in the Mystic Mountains in Carina (2025)
Journal Article
Reiter, M., McLeod, A. F., Itrich, D., & Klaassen, P. D. (2025). Into the Mystic: the MUSE view of the ionized gas in the Mystic Mountains in Carina. Monthly Notices of the Royal Astronomical Society, 537(4), 3009-3026. https://doi.org/10.1093/mnras/staf193

We present optical integral field unit observations of the Mystic Mountains, a dust pillar complex in the centre of the Carina Nebula that is heavily irradiated by the nearby young massive cluster Trumpler 14. With the continuous spatial and spectral... Read More about Into the Mystic: the MUSE view of the ionized gas in the Mystic Mountains in Carina.

DUVET: sub-kiloparsec resolved star formation driven outflows in a sample of local starbursting disc galaxies (2024)
Journal Article
Reichardt Chu, B., Fisher, D. B., Chisholm, J., Berg, D., Bolatto, A., Cameron, A. J., Fielding, D. B., Herrera-Camus, R., Kacprzak, G. G., Li, M., McLeod, A. F., McPherson, D. K., Nielsen, N. M., Rickards Vaught, R. J., Ridolfo, S. G., & Sandstrom, K. (2025). DUVET: sub-kiloparsec resolved star formation driven outflows in a sample of local starbursting disc galaxies. Monthly Notices of the Royal Astronomical Society, 536(2), 1799-1821. https://doi.org/10.1093/mnras/stae2705

A tell-tale tracer for externally irradiated protoplanetary disks: Comparing the [C I] 8727 Å line and ALMA observations in proplyds (2024)
Journal Article
Aru, M.-L., Maucó, K., Manara, C. F., Haworth, T. J., Ballering, N., Boyden, R., Campbell-White, J., Facchini, S., Rosotti, G. P., Winter, A., Miotello, A., McLeod, A. F., Robberto, M., Petr-Gotzens, M. G., Ballabio, G., Vicente, S., Ansdell, M., & Cleeves, L. I. (2024). A tell-tale tracer for externally irradiated protoplanetary disks: Comparing the [C I] 8727 Å line and ALMA observations in proplyds. Astronomy & Astrophysics, 692, Article A137. https://doi.org/10.1051/0004-6361/202451737

The evolution of protoplanetary disks in regions with massive OB stars is influenced by externally driven winds that deplete the outer parts of these disks. The winds have previously been studied via forbidden oxygen emission lines, which also arise... Read More about A tell-tale tracer for externally irradiated protoplanetary disks: Comparing the [C I] 8727 Å line and ALMA observations in proplyds.

Detection of Diffuse Hot Gas around the Young, Potential Superstar Cluster H72.97–69.39 (2024)
Journal Article
Webb, T. L., Rodriguez, J. A., Lopez, L. A., Rosen, A. L., Lancaster, L., Nayak, O., McLeod, A. F., Pandey, P., & Olivier, G. M. (2024). Detection of Diffuse Hot Gas around the Young, Potential Superstar Cluster H72.97–69.39. The Astrophysical Journal, 977(1), Article 45. https://doi.org/10.3847/1538-4357/ad8c41

We present the first Chandra X-ray observations of H72.97–69.39, a highly embedded, potential superstar cluster in its infancy located in the star-forming complex N79 of the Large Magellanic Cloud. We detect particularly hard, diffuse X-ray emission... Read More about Detection of Diffuse Hot Gas around the Young, Potential Superstar Cluster H72.97–69.39.

JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium (2024)
Journal Article
Chastenet, J., De Looze, I., Relaño, M., Dale, D. A., Williams, T. G., Bianchi, S., Xilouris, E. M., Baes, M., Bolatto, A. D., Boyer, M. L., Casasola, V., Clark, C. J. R., Fraternali, F., Fritz, J., Galliano, F., Glover, S. C. O., Gordon, K. D., Hirashita, H., Kennicutt, R., Nagamine, K., …Wood, K. (2024). JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium. Astronomy & Astrophysics, 690, Article A348. https://doi.org/10.1051/0004-6361/202451033

We present new JWST observations of the nearby, prototypical edge-on, spiral galaxy NGC 891. The northern half of the disk was observed with NIRCam in its F150W and F277W filters. Absorption is clearly visible in the mid-plane of the F150W image, alo... Read More about JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium.

Braving the Storm: Quantifying Disk-wide Ionized Outflows in the Large Magellanic Cloud with ULLYSES (2024)
Journal Article
Zheng, Y., Tchernyshyov, K., Olsen, K., Choi, Y., Bustard, C., Roman-Duval, J., Zhu, R., Di Teodoro, E. M., Werk, J., Putman, M., McLeod, A. F., Faerman, Y., Simons, R. C., & Peek, J. (2024). Braving the Storm: Quantifying Disk-wide Ionized Outflows in the Large Magellanic Cloud with ULLYSES. The Astrophysical Journal, 974(1), 22. https://doi.org/10.3847/1538-4357/ad64d2

The Large Magellanic Cloud (LMC) is home to many H ii regions, which may lead to significant outflows. We examine the LMC’s multiphase gas (T∼104-5 K) in H i, S ii, Si iv, and C iv using 110 stellar sight lines from the Hubble Space Telescope’s Ultra... Read More about Braving the Storm: Quantifying Disk-wide Ionized Outflows in the Large Magellanic Cloud with ULLYSES.

HARMONI at ELT: project status and instrument overview (2024)
Presentation / Conference Contribution
Thatte, N. A., Melotte, D., Neichel, B., Le Mignant, D., Rees, P., Clarke, F., Ferraro-Wood, V., Gonzalez, O., Jones, M., Álvarez Urueña, A., Vilaseca, H., Arribas Mocoroa, S., Caballero, J. A., Carracedo Carballal, G. J., Estrada Piqueras, A., Ferro, I., García García, M., Lamperti, I., Pereira Santaella, M., Perna, M., …York, A. (2024, June). HARMONI at ELT: project status and instrument overview. Presented at Ground-based and Airborne Instrumentation for Astronomy X, Yokohama, Japan

Kaleidoscope of irradiated disks: MUSE observations of proplyds in the Orion Nebula Cluster: I. Sample presentation and ionization front sizes (2024)
Journal Article
Aru, M.-L., Maucó, K., Manara, C. F., Haworth, T. J., Facchini, S., McLeod, A. F., Miotello, A., Petr-Gotzens, M. G., Robberto, M., Rosotti, G. P., Vicente, S., Winter, A., & Ansdell, M. (2024). Kaleidoscope of irradiated disks: MUSE observations of proplyds in the Orion Nebula Cluster: I. Sample presentation and ionization front sizes. Astronomy & Astrophysics, 687, Article A93. https://doi.org/10.1051/0004-6361/202349004

In the Orion Nebula Cluster (ONC), protoplanetary disks exhibit ionized gas clouds in the form of a striking teardrop shape as massive stars irradiate the disk material. We present the first spatially and spectrally resolved observations of 12 such o... Read More about Kaleidoscope of irradiated disks: MUSE observations of proplyds in the Orion Nebula Cluster: I. Sample presentation and ionization front sizes.

The population of young low-mass stars in Trumpler 14 (2024)
Journal Article
Itrich, D., Testi, L., Beccari, G., Manara, C. F., Reiter, M., Preibisch, T., …Hennebelle, P. (2024). The population of young low-mass stars in Trumpler 14. Astronomy & Astrophysics, 685, Article A100. https://doi.org/10.1051/0004-6361/202347380

Massive star-forming regions are thought to be the most common birth environments in the Galaxy and the only birth places of very massive stars. Their presence in the stellar cluster alters the conditions within the cluster, impacting at the same tim... Read More about The population of young low-mass stars in Trumpler 14.

Pre-supernova stellar feedback in nearby starburst dwarf galaxies (2024)
Journal Article
McLeod, A. F., Fattahi, A., Belfiore, F., Rowland, L. E., Cresci, G., Hunt, L., …Venturi, G. (2024). Pre-supernova stellar feedback in nearby starburst dwarf galaxies. Astronomy & Astrophysics, 685, Article A46. https://doi.org/10.1051/0004-6361/202348029

Context. Stellar feedback in dwarf galaxies remains, to date, poorly explored, yet is crucial to understanding galaxy evolution in the early Universe. In particular, pre-supernova feedback has recently been found to play a significant role in regulat... Read More about Pre-supernova stellar feedback in nearby starburst dwarf galaxies.

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.