All Outputs (83)

The VMC survey – XXV. The 3D structure of the Small Magellanic Cloud from Classical Cepheids (2017)
Journal Article
Ripepi, V., Cioni, M.-R. L., Ida Moretti, M., Marconi, M., Bekki, K., Clementini, G., de Grijs, R., Emerson, J., Groenewegen, M. A., Ivanov, V. D., Molinaro, R., Muraveva, T., Oliveira, J. M., Piatti, A. E., Subramanian, S., & Van Loon, J. T. (2017). The VMC survey – XXV. The 3D structure of the Small Magellanic Cloud from Classical Cepheids. Monthly Notices of the Royal Astronomical Society, 472(1), 808 -827. https://doi.org/10.1093/mnras/stx2096

The VISTA near-infrared YJKs survey of the Magellanic System (VMC) is collecting deep Ks-band time-series photometry of pulsating stars hosted by the two Magellanic Clouds and their connecting bridge. Here, we present Y, J, Ks light curves for a samp... Read More about The VMC survey – XXV. The 3D structure of the Small Magellanic Cloud from Classical Cepheids.

The SAGE-Spec Spitzer Legacy program: the life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification - III (2017)
Journal Article
Jones, O., Woods, P., Kemper, F., Kraemer, K., Sloan, G., Srinivasan, S., Oliveira, J., Van Loon, J. T., Boyer, M., Sargent, B., McDonald, I., Meixner, M., Zijlstra, A., Ruffle, P., Lagadec, E., Pauly, T., Sewiło, M., Clayton, G., & Volk, K. (2017). The SAGE-Spec Spitzer Legacy program: the life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification - III. Monthly Notices of the Royal Astronomical Society, 470(3), 3250 -3282. https://doi.org/10.1093/mnras/stx1101

The Infrared Spectrograph (IRS) on the Spitzer Space Telescope observed nearly 800 point sources in the Large Magellanic Cloud (LMC), taking over 1000 spectra. 197 of these targets were observed as part of the SAGE-Spec Spitzer Legacy program; the re... Read More about The SAGE-Spec Spitzer Legacy program: the life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification - III.

Properties of CO$_2$ clathrate hydrates formed in the presence of MgSO$_4$ solutions with implications for icy moons (2017)
Journal Article
Safi, E., Thompson, S., Evans, A., Day, S., Murray, C., Parker, J., Baker, A., Oliveira, J., & Van Loon, J. T. (2017). Properties of CO$_2$ clathrate hydrates formed in the presence of MgSO$_4$ solutions with implications for icy moons. Astronomy & Astrophysics, 600(A88), https://doi.org/10.1051/0004-6361/201629791

There is evidence to suggest that clathrate hydrates have a significant effect on the surface geology of icy bodies in the Solar System. However the aqueous environments believed to be present on these bodies are likely to be saline rather than pure... Read More about Properties of CO$_2$ clathrate hydrates formed in the presence of MgSO$_4$ solutions with implications for icy moons.

K-band integral field spectroscopy and optical spectroscopy of massive young stellar objects in the Small Magellanic Cloud (2016)
Journal Article
Ward, J., Oliveira, J., Van Loon, J. T., & Sewiło, M. (2017). K-band integral field spectroscopy and optical spectroscopy of massive young stellar objects in the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 464(2), 1512 -1552. https://doi.org/10.1093/mnras/stw2386

We present K-band integral field spectroscopic observations towards 17 massive young stellar objects (YSOs) in the low-metallicity Small Magellanic Cloud (SMC) and two YSO candidates in the compact H?II regions N81 and N88 A (also in the SMC). These... Read More about K-band integral field spectroscopy and optical spectroscopy of massive young stellar objects in the Small Magellanic Cloud.

The VMC Survey - XXI. New star cluster candidates discovered from infrared photometry in the Small Magellanic Cloud (2016)
Journal Article
Piatti, A. E., Ivanov, V. D., Rubele, S., Marconi, M., Ripepi, V., Cioni, M.-R. L., Oliveira, J. M., & Bekki, K. (2016). The VMC Survey - XXI. New star cluster candidates discovered from infrared photometry in the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 460(1), 383 - 395. https://doi.org/10.1093/mnras/stw1000

We report the first search for new star clusters performed using the VISTA near-infrared YJKs Magellanic Clouds survey (VMC) data sets. We chose a pilot field of ~0.4 deg2 located in the South-west of the Small Magelllanic Cloud bar, where the star f... Read More about The VMC Survey - XXI. New star cluster candidates discovered from infrared photometry in the Small Magellanic Cloud.

XVII. Proper motions of the Small Magellanic Cloud and the Milky Way globular cluster 47 Tucanae (2016)
Journal Article
Cioni, M.-R. L., Bekki, K., Girardi, L., de Grijs, R., Irwin, M. J., Ivanov, V. D., Marconi, M., Oliveira, J. M., Piatti, A. E., Ripepi, V., & Van Loon, J. T. (2016). XVII. Proper motions of the Small Magellanic Cloud and the Milky Way globular cluster 47 Tucanae. Astronomy & Astrophysics, 586, Article A77. https://doi.org/10.1051/0004-6361/201527004

Aims. In this study we use multi-epoch near-infrared observations from the VISTA survey of the Magellanic Cloud system (VMC) to measure the proper motions of different stellar populations in a tile of 1.5 deg2 in size in the direction of the Galactic... Read More about XVII. Proper motions of the Small Magellanic Cloud and the Milky Way globular cluster 47 Tucanae.

Integral field spectroscopy of massive young stellar objects in the N113 H II region in the Large Magellanic Cloud (2015)
Journal Article
Ward, J., Oliveira, J., Van Loon, J. T., & Sewiło, M. (2016). Integral field spectroscopy of massive young stellar objects in the N113 H II region in the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 455(3), 2345 - 2362. https://doi.org/10.1093/mnras/stv2424

The Spitzer Surveying the Agents of Galaxy Evolution (SAGE) survey has allowed the identification and analysis of significant samples of Young Stellar Object (YSO) candidates in the Large Magellanic Cloud (LMC). However, the angular resolution of Spi... Read More about Integral field spectroscopy of massive young stellar objects in the N113 H II region in the Large Magellanic Cloud.

Young Stellar Objects in the Magellanic Clouds: Herschel Spectroscopy First Results (2015)
Presentation / Conference Contribution
Oliveira, J. M., van Loon, J. T., & Sewiło, M. (2015, August). Young Stellar Objects in the Magellanic Clouds: Herschel Spectroscopy First Results. Presented at Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes?, Honolulu, United States

We present preliminary results from spectroscopy obtained with PACS and SPIRE onboard the Herschel Space Observatory of a sample of massive Young Stellar Objects in the Magellanic Clouds. We analyse key gas-phase cooling species (OI], [CII], H2O, CO,... Read More about Young Stellar Objects in the Magellanic Clouds: Herschel Spectroscopy First Results.

Characterising the Protostellar Population of the Magellanic Clouds with VLT/SINFONI (2015)
Presentation / Conference Contribution
Ward, J., Oliveira, J., van Loon, J., & Sewilo, M. Characterising the Protostellar Population of the Magellanic Clouds with VLT/SINFONI. Presented at Proceedings of the International Astronomical Union - From Interstellar Clouds to Star-Forming Galaxies: Universal Processes?

At distances of ~50 kpc and ~60 kpc for the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) respectively the Magellanic Clouds present us with a unique opportunity to study star formation in environments outside our own galaxy. Through... Read More about Characterising the Protostellar Population of the Magellanic Clouds with VLT/SINFONI.

Spitzer infrared spectrograph point source classification in the Small Magellanic Cloud (2015)
Journal Article
Ruffle, P. M., Kemper, F., Jones, O., Sloan, G., Kraemer, K., Woods, P. M., Boyer, M., Srinivasan, S., Antoniou, V., Lagadec, E., Matsuura, M., McDonald, I., Oliveira, J., Sargent, B., Sewiło, M., Szczerba, R., van Loon, J., Van Loon, J. T., Volk, K., & Zijlstra, A. (2015). Spitzer infrared spectrograph point source classification in the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 451(4), 3504 -3536. https://doi.org/10.1093/mnras/stv1106

The Magellanic Clouds are uniquely placed to study the stellar contribution to dust emission. Individual stars can be resolved in these systems even in the mid-infrared, and they are close enough to allow detection of infrared excess caused by dust.... Read More about Spitzer infrared spectrograph point source classification in the Small Magellanic Cloud.

Star formation rates from young-star counts and the structure of the ISM across the NGC 346/N66 complex in the SMC (2015)
Journal Article
Hony, S., Gouliermis, D., Galliano, F., Galametz, M., Cormier, D., Chen, C.-H., Dib, S., Hughes, A., Klessen, R., Roman-Duval, J., Smith, L., Bernard, J.-P., Bot, C., Carlson, L., Gordon, K., Indebetouw, R., Lebouteiller, V., Lee, M.-Y., Madden, S., Meixner, M., …Wu, R. (2015). Star formation rates from young-star counts and the structure of the ISM across the NGC 346/N66 complex in the SMC. Monthly Notices of the Royal Astronomical Society, 448(2), 1847 - 1862. https://doi.org/10.1093/mnras/stv107

The rate at which interstellar gas is converted into stars, and its dependence on environment, is one of the pillars on which our understanding of the visible Universe is build. We present a comparison of the surface density of young stars (S?) and d... Read More about Star formation rates from young-star counts and the structure of the ISM across the NGC 346/N66 complex in the SMC.

ERRATUM: “THE HERSCHEL INVENTORY OF THE AGENTS OF GALAXY EVOLUTION (HERITAGE) IN THE MAGELLANIC CLOUDS, A HERSCHEL OPEN TIME KEY PROGRAM” (2013, AJ, 146, 62) (2015)
Journal Article
Meixner, M., Panuzzo, P., Roman-Duval, J., Engelbracht, C., Babler, B., Seale, J., Hony, S., Montiel, E., Sauvage, M., Gordon, K., Misselt, K., Okumura, K., Chanial, P., Beck, T., Bernard, J.-P., Bolatto, A., Bot, C., Boyer, M. L., Carlson, L. R., Clayton, G. C., …Whitney, B. (2015). ERRATUM: “THE HERSCHEL INVENTORY OF THE AGENTS OF GALAXY EVOLUTION (HERITAGE) IN THE MAGELLANIC CLOUDS, A HERSCHEL OPEN TIME KEY PROGRAM” (2013, AJ, 146, 62). Astronomical Journal, 149(2), Article 88. https://doi.org/10.1088/0004-6256/149/2/88

We provide a corrected Table 4 that lists the total galaxy fluxes for the HERTIAGE bands and corresponding Figure 19 which plots these fluxes in comparison to prior measurements These corrected fluxes differ by up to 41% to what we reported in the or... Read More about ERRATUM: “THE HERSCHEL INVENTORY OF THE AGENTS OF GALAXY EVOLUTION (HERITAGE) IN THE MAGELLANIC CLOUDS, A HERSCHEL OPEN TIME KEY PROGRAM” (2013, AJ, 146, 62).

HERschelKEY PROGRAM HERITAGE: A FAR-INFRARED SOURCE CATALOG FOR THE MAGELLANIC CLOUDS (2014)
Journal Article
Seale, J. P., Meixner, M., Sewiło, M., Babler, B., Engelbracht, C. W., Gordon, K., Hony, S., Misselt, K., Montiel, E., Okumura, K., Panuzzo, P., Roman-Duval, J., Sauvage, M., Boyer, M. L., Chen, C.-H. R., Indebetouw, R., Matsuura, M., Oliveira, J. M., Srinivasan, S., Loon, J. T. V., …Woods, P. M. (in press). HERschelKEY PROGRAM HERITAGE: A FAR-INFRARED SOURCE CATALOG FOR THE MAGELLANIC CLOUDS. Astronomical Journal, 148(6), 124. https://doi.org/10.1088/0004-6256/148/6/124

Observations from the HERschel Inventory of the Agents of Galaxy Evolution (HERITAGE) have been used to identify dusty populations of sources in the Large and Small Magellanic Clouds (LMC and SMC). We conducted the study using the HERITAGE catalogs o... Read More about HERschelKEY PROGRAM HERITAGE: A FAR-INFRARED SOURCE CATALOG FOR THE MAGELLANIC CLOUDS.

The VMC Survey XII. Star cluster candidates in the Large Magellanic Cloud (2014)
Journal Article
Oliveira, J. (2014). The VMC Survey XII. Star cluster candidates in the Large Magellanic Cloud. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201424175

Context. In this work we analyse colour-magnitude diagrams (CMDs) of catalogued star clusters located in the Large Magellanic Cloud (LMC), from a YJKs photometric data set obtained by the Visible and Infrared Survey Telescope for Astronomy (VISTA) su... Read More about The VMC Survey XII. Star cluster candidates in the Large Magellanic Cloud.

Spitzer View Of Massive Star Formation In The Tidally Stripped Magellanic Bridge (2014)
Journal Article
Rosie Chen, C.-H., Indebetouw, R., Muller, E., Kawamura, A., Gordon, K. D., Sewiło, M., Whitney, B. A., Fukui, Y., Madden, S. C., Meade, M. R., Meixner, M., Oliveira, J. M., Robitaille, T. P., Seale, J. P., Shiao, B., & Van Loon, J. (2014). Spitzer View Of Massive Star Formation In The Tidally Stripped Magellanic Bridge. Astrophysical Journal, 785(2), Article 162. https://doi.org/10.1088/0004-637X/785/2/162

The Magellanic Bridge is the nearest low-metallicity, tidally stripped environment, offering a unique high-resolution view of physical conditions in merging and forming galaxies. In this paper, we present an analysis of candidate massive young stella... Read More about Spitzer View Of Massive Star Formation In The Tidally Stripped Magellanic Bridge.

The VMC survey IX. Pilot study of the proper motion of stellar populations in the LMC from 2MASS and VISTA data (2014)
Journal Article
Cioni, M.-R., Girardi, L., Moretti, M., Piffl, T., Ripepi, V., Rubele, S., Scholz, R.-D., Bekki, K., Clementini, G., Ivanov, V., Oliveira, J., & Van Loon, J. (2014). The VMC survey IX. Pilot study of the proper motion of stellar populations in the LMC from 2MASS and VISTA data. Astronomy & Astrophysics, 562, Article A32. https://doi.org/10.1051/0004-6361/201322100

Context. Proper motion (PM) studies are fundamental ingredients in the understanding of the orbital history of galaxies. Current measurements do not yet provide a satisfactory answer to the possible scenarios for the formation and evolution of the Ma... Read More about The VMC survey IX. Pilot study of the proper motion of stellar populations in the LMC from 2MASS and VISTA data.

Molecular hydrogen emission in the interstellar medium of the Large Magellanic Cloud (2014)
Journal Article
Naslim, N., Kemper, F., Madden, S. C., Hony, S., Chu, Y.-H., Galliano, F., Bot, C., Yang, Y., Seok, J., Oliveira, J. M., Van Loon, J. T., Meixner, M., Li, A., Hughes, A., Gordon, K. D., Otsuka, M., Hirashita, H., Morata, O., Lebouteiller, V., Indebetouw, R., …Reach, W. T. (2014). Molecular hydrogen emission in the interstellar medium of the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 446(3), 2490 - 2504. https://doi.org/10.1093/mnras/stu2276

We present the detection and analysis of molecular hydrogen emission towards ten interstellar regions in the Large Magellanic Cloud. We examined low-resolution infrared spectral maps of 12 regions obtained with the Spitzer infrared spectrograph (IRS)... Read More about Molecular hydrogen emission in the interstellar medium of the Large Magellanic Cloud.

Mapping the Star Formation in Orion A/L1641 (2014)
Presentation / Conference Contribution
Pillitteri, I., Wolk, S. J., Megeath, S. T., Allen, L., Bally, J., Gagné, M., Gutermuth, R. A., Hartman, L., Micela, G., Myers, P., Oliveira, J. M., Sciortino, S., Walter, F., Rebull, L., & Stauffer, J. (2012, June). Mapping the Star Formation in Orion A/L1641. Presented at The Labyrinth of Star Formation, Crete, Greece

First phases of the process of star formation are characterized by excess in infrared and high X-ray emission. With Spitzer and XMM-Newton we have surveyed the Orion A part relative to the filamentary cloud Lynds 1641 (L1641). Furthermore, an extende... Read More about Mapping the Star Formation in Orion A/L1641.

The VMC Survey - VIII. First results for anomalous Cepheids (2013)
Journal Article
Ripepi, V., Marconi, M., Moretti, M., Clementini, G., Cioni, M.-R., de Grijs, R., Emerson, J., Groenewegen, M., Ivanov, V., & Oliveira, J. (2014). The VMC Survey - VIII. First results for anomalous Cepheids. Monthly Notices of the Royal Astronomical Society, 437(3), 2307 -2319. https://doi.org/10.1093/mnras/stt2047

The VISTA near-infrared YJKs survey of the Magellanic Clouds System (VMC, PI M.-R. L. Cioni) is collecting deep Ks-band time-series photometry of the pulsating variable stars hosted in the system formed by the two Magellanic Clouds and the Bridge con... Read More about The VMC Survey - VIII. First results for anomalous Cepheids.

SURVEYING THE AGENTS OF GALAXY EVOLUTION IN THE TIDALLY STRIPPED, LOW METALLICITY SMALL MAGELLANIC CLOUD (SAGE-SMC). III. YOUNG STELLAR OBJECTS (2013)
Journal Article
Sewiło, M., Carlson, L. R., Seale, J. P., Indebetouw, R., Meixner, M., Whitney, B. A., Robitaille, T. P., Oliveira, J. M., Gordon, K., Meade, M. R., Babler, B. L., Hora, J. L., Block, M., Misselt, K., van Loon, J. T., Chen, C.-H. R., Churchwell, E., & Shiao, B. (in press). SURVEYING THE AGENTS OF GALAXY EVOLUTION IN THE TIDALLY STRIPPED, LOW METALLICITY SMALL MAGELLANIC CLOUD (SAGE-SMC). III. YOUNG STELLAR OBJECTS. Astrophysical Journal, 778(1), 15. https://doi.org/10.1088/0004-637x/778/1/15

The Spitzer Space Telescope Legacy Program SAGE-SMC allows global studies of resolved stellar populations in the SMC in a different environment than our Galaxy. Using the SAGE-SMC IRAC (3.6–8.0 μm) and MIPS (24 and 70 μm) catalogs and images combined... Read More about SURVEYING THE AGENTS OF GALAXY EVOLUTION IN THE TIDALLY STRIPPED, LOW METALLICITY SMALL MAGELLANIC CLOUD (SAGE-SMC). III. YOUNG STELLAR OBJECTS.