The VMC survey - XLVI. Stellar proper motions in the centre of the Large Magellanic Cloud (2022)
Journal Article
Niederhofer, F., Cioni, M.-R. L., Schmidt, T., Bekki, K., de Grijs, R., Ivanov, V. D., Oliveira, J. M., Ripepi, V., Subramanian, S., & Van Loon, J. T. (2022). The VMC survey - XLVI. Stellar proper motions in the centre of the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 512(4), 5423-5439. https://doi.org/10.1093/mnras/stac712

We present proper motion (PM) measurements within the central region of the Large Magellanic Cloud (LMC), using near-infrared data from the VISTA survey of the Magellanic Cloud system (VMC). This work encompasses 18 VMC tiles covering a total sky are... Read More about The VMC survey - XLVI. Stellar proper motions in the centre of the Large Magellanic Cloud.

The EDIBLES survey V: Line profile variations in the λλ5797, 6379, and 6614 diffuse interstellar bands as a tool to constrain carrier sizes (2022)
Journal Article
MacIsaac, H., Cami, J., Cox, N. L., Farhang, A., Smoker, J., Elyajouri, M., Lallement, R., Sarre, P. J., Cordiner, M. A., Fan, H., Kulik, K., Linnartz, H., Foing, B. H., van Loon, J. T., Mulas, G., & Smith, K. T. (2022). The EDIBLES survey V: Line profile variations in the λλ5797, 6379, and 6614 diffuse interstellar bands as a tool to constrain carrier sizes. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/202142225

Context. Several diffuse interstellar bands (DIBs) have profiles with resolved sub-peaks that resemble rotational bands of large molecules. Analysis of these profiles can constrain the sizes and geometries of the DIB carriers, especially if the profi... Read More about The EDIBLES survey V: Line profile variations in the λλ5797, 6379, and 6614 diffuse interstellar bands as a tool to constrain carrier sizes.

The VMC survey – XLVIII. Classical cepheids unveil the 3D geometry of the LMC (2022)
Journal Article
Van Loon. (2022). The VMC survey – XLVIII. Classical cepheids unveil the 3D geometry of the LMC. Monthly Notices of the Royal Astronomical Society, 563 - 582. https://doi.org/10.1093/mnras/stac595

We employed the VISTA near-infrared YJK(s) survey of the Magellanic System (VMC) to analyse the Y, J, and K-s light curves of delta Cepheid stars (DCEPs) in the Large Magellanic Cloud (LMC). Our sample consists of 4408 objects accounting for 97 per c... Read More about The VMC survey – XLVIII. Classical cepheids unveil the 3D geometry of the LMC.

The VMC survey – XLVII. Turbulence-controlled hierarchical star formation in the Large Magellanic Cloud (2022)
Journal Article
Miller, A. E., Cioni, M.-R. L., de Grijs, R., Sun, N.-C., Bell, C. P. M., Choudhury, S., Ivanov, V. D., Marconi, M., Oliveira, J. M., Petr–Gotzens, M., Ripepi, V., & Van Loon, J. T. (2022). The VMC survey – XLVII. Turbulence-controlled hierarchical star formation in the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 512(1), 1196-1213. https://doi.org/10.1093/mnras/stac508

We perform a statistical clustering analysis of upper main-sequence stars in the Large Magellanic Cloud (LMC) using data from the Visible and Infrared Survey Telescope for Astronomy survey of the Magellanic Clouds. We map over 2500 young stellar stru... Read More about The VMC survey – XLVII. Turbulence-controlled hierarchical star formation in the Large Magellanic Cloud.

Evolutionary map of the Universe (EMU): 18-cm OH-maser discovery in ASKAP continuum images of the SCORPIO field (2022)
Journal Article
Ingallinera, A., Cavallaro, F., Loru, S., Marvil, J., Umana, G., Trigilio, C., Breen, S., Bordiu, C., Buemi, C. S., Bufano, F., Collier, J., Etoka, S., Filipović, M. D., Goldman, S. R., Hopkins, A. M., Koribalski, B. S., Leto, P., Norris, R. P., Riggi, S., Schillirò, F., …Van Loon, J. T. (2022). Evolutionary map of the Universe (EMU): 18-cm OH-maser discovery in ASKAP continuum images of the SCORPIO field. Monthly Notices of the Royal Astronomical Society: Letters, 512(1), L21-L26. https://doi.org/10.1093/mnrasl/slac017

Low- and intermediate-mass stars end their life dispersing their outer layers into the circumstellar medium, during the asymptotic and post-asymptotic giant branch phases. OH masers at 18 cm offer an effective way to probe their circumstellar environ... Read More about Evolutionary map of the Universe (EMU): 18-cm OH-maser discovery in ASKAP continuum images of the SCORPIO field.

GASKAP-HI pilot survey science I: ASKAP zoom observations of Hi emission in the Small Magellanic Cloud (2022)
Journal Article
Van Loon. (2022). GASKAP-HI pilot survey science I: ASKAP zoom observations of Hi emission in the Small Magellanic Cloud. Publications of the Astronomical Society of Australia, https://doi.org/10.1017/pasa.2021.59

We present the most sensitive and detailed view of the neutral hydrogen (HI) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Australian Square Kilometre Array Pathfinder (ASKAP) and Parkes (Murriyan... Read More about GASKAP-HI pilot survey science I: ASKAP zoom observations of Hi emission in the Small Magellanic Cloud.

GASKAP Pilot Survey Science. II. ASKAP Zoom Observations of Galactic 21 cm Absorption (2022)
Journal Article
Van Loon. (2022). GASKAP Pilot Survey Science. II. ASKAP Zoom Observations of Galactic 21 cm Absorption. Astrophysical Journal, https://doi.org/10.3847/1538-4357/ac3a89

Using the Australian Square Kilometre Array Pathfinder to measure 21 cm absorption spectra toward continuum background sources, we study the cool phase of the neutral atomic gas in the far outer disk, and in the inner Galaxy near the end of the Galac... Read More about GASKAP Pilot Survey Science. II. ASKAP Zoom Observations of Galactic 21 cm Absorption.

The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. II. The Star-formation History of Andromeda I Derived from Long-period Variables (2021)
Journal Article
Van Loon. (2021). The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. II. The Star-formation History of Andromeda I Derived from Long-period Variables. Astrophysical Journal, https://doi.org/10.3847/1538-4357/ac2d96

An optical monitoring survey in the nearby dwarf galaxies was carried out with the 2.5 m Isaac Newton Telescope. 55 dwarf galaxies and four isolated globular clusters in the Local Group were observed with the Wide Field Camera. The main aims of this... Read More about The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. II. The Star-formation History of Andromeda I Derived from Long-period Variables.

Families and clusters of diffuse interstellar bands: a data-driven correlation analysis (2021)
Journal Article
Van Loon. (2021). Families and clusters of diffuse interstellar bands: a data-driven correlation analysis. Monthly Notices of the Royal Astronomical Society, 3546 - 3560. https://doi.org/10.1093/mnras/stab3651

More than 500 diffuse interstellar bands (DIBs) have been observed in astronomical spectra, and their signatures and correlations in different environments have been studied over the past decades to reveal clues about the nature of the carriers. We c... Read More about Families and clusters of diffuse interstellar bands: a data-driven correlation analysis.

Presence of red giant population in the foreground stellar substructure of the Small Magellanic Cloud (2021)
Journal Article
Van Loon. (2021). Presence of red giant population in the foreground stellar substructure of the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 5854 - 5863. https://doi.org/10.1093/mnras/stab2873

<jats:title>ABSTRACT</jats:title> <jats:p>The eastern region of the Small Magellanic Cloud (SMC) is found to have a foreground stellar substructure, which is identified as a distance bimodality (~12?kpc apart) in the previous studies using red clump... Read More about Presence of red giant population in the foreground stellar substructure of the Small Magellanic Cloud.

Radio continuum sources behind the Large Magellanic Cloud (2021)
Journal Article
Van Loon. (2021). Radio continuum sources behind the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 2885 - 2904. https://doi.org/10.1093/mnras/stab2249

We present a comprehensive multifrequency catalogue of radio sources behind the Large Magellanic Cloud (LMC) between 0.2 and 20 GHz, gathered from a combination of new and legacy radio continuum surveys. This catalogue covers an area of ~144 deg2 at... Read More about Radio continuum sources behind the Large Magellanic Cloud.

The VMC survey – XLIV: Mapping metallicity trends in the large magellanic cloud using near-infrared passbands (2021)
Journal Article
Choudhury, S., de Grijs, R., Bekki, K., Cioni, M.-R. L., Ivanov, V. D., Van Loon, J. T., Miller, A. E., Niederhofer, F., Oliveira, J. M., Ripepi, V., Sun, N.-C., & Subramanian, S. (2021). The VMC survey – XLIV: Mapping metallicity trends in the large magellanic cloud using near-infrared passbands. Monthly Notices of the Royal Astronomical Society, 507(4), 4752-4763. https://doi.org/10.1093/mnras/stab2446

We have derived high-spatial-resolution metallicity maps covering ~105 deg2 across the Large Magellanic Cloud (LMC) using near-infrared passbands from the VISTA Survey of the Magellanic Clouds. We attempt to understand the metallicity distribution an... Read More about The VMC survey – XLIV: Mapping metallicity trends in the large magellanic cloud using near-infrared passbands.

The VMC survey - XLIII. The spatially resolved star formation history across the Large Magellanic Cloud (2021)
Journal Article
Mazzi, A., Girardi, L., Zaggia, S., Pastorelli, G., Rubele, S., Bressan, A., Cioni, M.-R. L., Clementini, G., Cusano, F., Pedro Rocha, J., Gullieuszik, M., Kerber, L., Marigo, P., Ripepi, V., Bekki, K., Bell, C. P. M., de Grijs, R., Groenewegen, M. A. T., Ivanov, V. D., Oliveira, J. M., …Van Loon, J. T. (2021). The VMC survey - XLIII. The spatially resolved star formation history across the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 508(1), 245 - 266

We derive the spatially resolved star formation history (SFH) for a 96 deg2 area across the main body of the Large Magellanic Cloud (LMC), using the near-infrared photometry from the VISTA survey of the Magellanic Clouds (VMC). The data and analyses... Read More about The VMC survey - XLIII. The spatially resolved star formation history across the Large Magellanic Cloud.

Massive young stellar objects in the Local Group irregular galaxy NGC6822 identified using machine learning (2021)
Journal Article
Kinson, D. A., Oliveira, J., & Van Loon, J. (2021). Massive young stellar objects in the Local Group irregular galaxy NGC6822 identified using machine learning. Monthly Notices of the Royal Astronomical Society, 507(4), 5106 - 5131. https://doi.org/10.1093/mnras/stab2386

We present a supervised machine learning methodology to classify stellar populations in the Local Group dwarf-irregular galaxy NGC?6822. Near-IR colours (J - H, H - K, and J - K), K-band magnitudes and far-IR surface brightness (at 70 and 160?µm) mea... Read More about Massive young stellar objects in the Local Group irregular galaxy NGC6822 identified using machine learning.

The ASKAP-EMU Early Science Project: 888 MHz radio continuum survey of the Large Magellanic Cloud (2021)
Journal Article
Pennock, C. M., Van Loon, J. T., Filipović, M. D., Andernach, H., Haberl, F., Kothes, R., Lenc, E., Rudnick, L., White, S. V., Agliozzo, C., Antón, S., Bojičić, I., Bomans, D. J., Collier, J. D., Crawford, E. J., Hopkins, A. M., Jeganathan, K., Kavanagh, P. J., Koribalski, B. S., Leahy, D., …Vardoulaki, E. (2021). The ASKAP-EMU Early Science Project: 888 MHz radio continuum survey of the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 506(3), 3540 - 3559. https://doi.org/10.1093/mnras/stab1858

We present an analysis of a new 120 deg2 radio continuum image of the Large Magellanic Cloud (LMC) at 888 MHz with a bandwidth of 288 MHz and beam size of 13${_{.}^{\prime\prime}}$9 × 12${_{.}^{\prime\prime}}$1 from the Australian Square Kilometre Ar... Read More about The ASKAP-EMU Early Science Project: 888 MHz radio continuum survey of the Large Magellanic Cloud.

The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars (2021)
Journal Article
Tatton, B. L., Van Loon, J. T., Cioni, M.-R. L., Bekki, K., Bell, C. P. M., Choudhury, S., de Grijs, R., Groenewegen, M. A. T., Ivanov, V. D., Marconi, M., Oliveira, J. M., Ripepi, V., Rubele, S., Subramanian, S., & Sun, N.-C. (2021). The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars. Monthly Notices of the Royal Astronomical Society, 504(2), 2983 - 2997. https://doi.org/10.1093/mnras/staa3857

Galaxy interactions distort the distribution of baryonic matter and can affect star formation. The nearby Magellanic Clouds are a prime example of an ongoing galaxy interaction process. Here, we use the intermediate-age (similar to 1-10 Gyr) red clum... Read More about The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars.

Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers (2021)
Journal Article
El Youssoufi, D., Cioni, M.-R. L., Bell, C. P. M., de Grijs, R., Groenewegen, M. A. T., Ivanov, V. D., Matijevĭc, G., Niederhofer, F., Oliveira, J. M., Ripepi, V., Schmidt, T., Subramanian, S., Sun, N.-C., & Van Loon, J. T. (2021). Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers. Monthly Notices of the Royal Astronomical Society, 505(2), 2020-2038. https://doi.org/10.1093/mnras/stab1075

We study the morphology of the stellar periphery of the Magellanic Clouds in search of substructure using near–infrared imaging data from the VISTA Hemisphere Survey (VHS). Based on the selection of different stellar populations using the (J - Ks, Ks... Read More about Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers.

The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. IV. The Star Formation History of Andromeda VII Derived from Long-period Variable Stars (2021)
Journal Article
Van Loon. (2021). The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. IV. The Star Formation History of Andromeda VII Derived from Long-period Variable Stars. Astrophysical Journal, 127 - 127. https://doi.org/10.3847/1538-4357/abdec1

We have examined the star formation history (SFH) of Andromeda VII (And VII), the brightest and most massive dwarf spheroidal (dSph) satellite of the Andromeda galaxy (M31). Although M31 is surrounded by several dSph companions with old stellar popul... Read More about The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. IV. The Star Formation History of Andromeda VII Derived from Long-period Variable Stars.

The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud (2021)
Journal Article
Cusano, F., Moretti, M. I., Clementini, G., Ripepi, V., Marconi, M., Cioni, M.-R. L., Rubele, S., Garofalo, A., de Grijs, R., Groenewegen, M. A. T., Oliveira, J. M., Subramanian, S., Sun, N.-C., & Van Loon, J. T. (2021). The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 504(1), 1 - 15. https://doi.org/10.1093/mnras/stab901

We present results from an analysis of ~29?000 RR Lyrae stars located in the Large Magellanic Cloud (LMC). For these objects, near-infrared time-series photometry from the VISTA survey of the Magellanic Clouds system (VMC) and optical data from the O... Read More about The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud.

Evolutionary map of the Universe (EMU): Compact radio sources in the scorpio field towards the galactic plane (2021)
Journal Article
Van Loon. (2021). Evolutionary map of the Universe (EMU): Compact radio sources in the scorpio field towards the galactic plane. Monthly Notices of the Royal Astronomical Society, 60 - 79. https://doi.org/10.1093/mnras/stab028

We present observations of a region of the Galactic plane taken during the Early Science Program of the Australian Square Kilometre Array Pathfinder (ASKAP). In this context, we observed the scorpio field at 912MHz with an uncompleted array consistin... Read More about Evolutionary map of the Universe (EMU): Compact radio sources in the scorpio field towards the galactic plane.