All Outputs (15)

Detecting Long Period Variables in M 33 Using UKIRT-WFCAM Images (2015)
Conference Proceeding
Saberi, M., Javadi, A., van Loon, J. T., & Khosroshahi, H. (2015). Detecting Long Period Variables in M 33 Using UKIRT-WFCAM Images. In Vol. 497 – Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time (497)

We have used the UK InfraRed Telescope (UKIRT) to conduct a near-IR monitoring campaign to search for variable stars in the Local Group spiral galaxy M 33. Most of the 4643 detected variables appear to be Asymptotic Giant Branch (AGB) stars.

DUST in Nearby Galaxies with Spitzer (DUSTINGS): An Infrared Census of Extreme AGB Stars in Nearby Dwarf Galaxies (2015)
Conference Proceeding
Boyer, M. L., McQuinn, K. . B. . W., Barmby, P., Bonanos, A. . Z., Gehrz, R. . D., Gordon, K. . D., …Zijlstra, A. . A. (2015). DUST in Nearby Galaxies with Spitzer (DUSTINGS): An Infrared Census of Extreme AGB Stars in Nearby Dwarf Galaxies. In 497, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time

Nearby resolved dwarf galaxies provide excellent opportunities for studying the dust-producing late stages of stellar evolution. DUSTiNGS (DUST in Nearby Galaxies with Spitzer) is a 3.6- and 4.5-μm imaging survey of 50 dwarf galaxies within 1.5 Mpc.... Read More about DUST in Nearby Galaxies with Spitzer (DUSTINGS): An Infrared Census of Extreme AGB Stars in Nearby Dwarf Galaxies.

Probing the Local Bubble with diffuse interstellar bands: I. Project overview and southern hemisphere survey⋆ (2015)
Journal Article
Bailey, M., van Loon, J. T., Farhang, A., Javadi, A., Khosroshahi, H. G., Sarre, P. J., & Smith, K. T. (2016). Probing the Local Bubble with diffuse interstellar bands: I. Project overview and southern hemisphere survey⋆. Astronomy & Astrophysics, 585, A12. https://doi.org/10.1051/0004-6361/201526656

Context. The Sun traverses a low-density, hot entity called the Local Bubble. Despite its relevance to life on Earth, the conditions in the Local Bubble and its exact configuration are not very well known. Besides that, there is some unknown interste... Read More about Probing the Local Bubble with diffuse interstellar bands: I. Project overview and southern hemisphere survey⋆.

Detection of Rotational CO Emission From the Red-supergiants in the Large Magellanic Cloud (2015)
Journal Article
Matsuura, M., Sargent, B., Swinyard, B., Yates, J., Royer, P., Barlow, M., …Woods, P. (2015). Detection of Rotational CO Emission From the Red-supergiants in the Large Magellanic Cloud. EAS Publications Series, 71-72, 53-56. https://doi.org/10.1051/eas/1571010

It is yet well understood how mass-loss rates from evolved stars depend on metallicities. With a half of the solar metallicity and the distance of only 50 kpc, the evolved stars of the Large Magellanic Cloud (LMC) are an ideal target for studying mas... Read More about Detection of Rotational CO Emission From the Red-supergiants in the Large Magellanic Cloud.

2dF-AAOmega spectroscopy of massive stars in the Magellanic Clouds: The north-eastern region of the Large Magellanic Cloud⋆⋆⋆ (2015)
Journal Article
Evans, C. J., van Loon, J. T., Hainich, R., & Bailey, M. (2015). 2dF-AAOmega spectroscopy of massive stars in the Magellanic Clouds: The north-eastern region of the Large Magellanic Cloud⋆⋆⋆. Astronomy & Astrophysics, 584, Article A5. https://doi.org/10.1051/0004-6361/201525882

We present spectral classifications from optical spectroscopy of 263 massive stars in the north-eastern region of the Large Magellanic Cloud. The observed two-degree field includes the massive 30 Doradus star-forming region, the environs of SN1987A,... Read More about 2dF-AAOmega spectroscopy of massive stars in the Magellanic Clouds: The north-eastern region of the Large Magellanic Cloud⋆⋆⋆.

Mapping atomic and difuse interstellar band absorption across the Magellanic clouds and the Milky Way (2015)
Journal Article
Bailey, M., Van Loon, J. T., Sarre, P. J., & Beckman, J. E. (2015). Mapping atomic and difuse interstellar band absorption across the Magellanic clouds and the Milky Way. Monthly Notices of the Royal Astronomical Society, 454(4), 4013-4026. https://doi.org/10.1093/mnras/stv2178

Diffuse interstellar bands (DIBs) trace warm neutral and weakly ionized diffuse interstellar medium (ISM). Here we present a dedicated, high signal-to-noise spectroscopic survey of two of the strongest DIBs, at 5780 and 5797 Å, in optical spectra of... Read More about Mapping atomic and difuse interstellar band absorption across the Magellanic clouds and the Milky Way.

ALMA reveals sunburn: CO dissociation around AGB stars in the globular cluster 47 Tucanae (2015)
Journal Article
McDonald, I., Zijlstra, A. A., Lagadec, E., Sloan, G. C., Boyer, M. L., Matsuura, M., …Groenewegen, M. A. T. (2015). ALMA reveals sunburn: CO dissociation around AGB stars in the globular cluster 47 Tucanae. Monthly Notices of the Royal Astronomical Society, 453(4), 4325-4337. https://doi.org/10.1093/mnras/stv1968

Atacama Large Millimetre Array observations show a non-detection of carbon monoxide around the four most luminous asymptotic giant branch (AGB) stars in the globular cluster 47 Tucanae. Stellar evolution models and star counts show that the mass-loss... Read More about ALMA reveals sunburn: CO dissociation around AGB stars in the globular cluster 47 Tucanae.

An evolutionary missing link? A modest-mass early-type galaxy hosting an oversized nuclear black hole (2015)
Journal Article
van Loon, J. T., & Sansom, A. E. (2015). An evolutionary missing link? A modest-mass early-type galaxy hosting an oversized nuclear black hole. Monthly Notices of the Royal Astronomical Society, 453(3), 2342-2349. https://doi.org/10.1093/mnras/stv1787

SAGE1C J053634.78−722658.5 is a galaxy at redshift z = 0.14, discovered behind the Large Magellanic Cloud in the SpitzerSpace Telescope‘Surveying the Agents of Galaxy Evolution’ Spectroscopy survey. It has very strong silicate emission at 10 μm but n... Read More about An evolutionary missing link? A modest-mass early-type galaxy hosting an oversized nuclear black hole.

IDENTIFICATION OF A CLASS OF LOW-MASS ASYMPTOTIC GIANT BRANCH STARS STRUGGLING TO BECOME CARBON STARS IN THE MAGELLANIC CLOUDS (2015)
Journal Article
Boyer, M. L., McDonald, I., Srinivasan, S., Zijlstra, A., Loon, J. T. V., Olsen, K. A. G., & Sonneborn, G. (in press). IDENTIFICATION OF A CLASS OF LOW-MASS ASYMPTOTIC GIANT BRANCH STARS STRUGGLING TO BECOME CARBON STARS IN THE MAGELLANIC CLOUDS. Astrophysical Journal, 810(2), 116. https://doi.org/10.1088/0004-637x/810/2/116

Characterising the Protostellar Population of the Magellanic Clouds with VLT/SINFONI (2015)
Journal Article
Ward, J., Oliveira, J., van Loon, J., & Sewilo, M. (2015). Characterising the Protostellar Population of the Magellanic Clouds with VLT/SINFONI. Proceedings of the International Astronomical Union, 11(S315), https://doi.org/10.1017/s1743921316008449

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.

Young Stellar Objects in the Magellanic Clouds: Herschel Spectroscopy First Results (2015)
Conference Proceeding
Oliveira, J. M., van Loon, J. T., & Sewiło, M. (2015). Young Stellar Objects in the Magellanic Clouds: Herschel Spectroscopy First Results. . https://doi.org/10.1017/s1743921316008231

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.

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., …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.

The stellar populations in the low-luminosity, early-type galaxy NGC 59 (2015)
Journal Article
Van Loon. (2015). The stellar populations in the low-luminosity, early-type galaxy NGC 59. Monthly Notices of the Royal Astronomical Society, 1338 - 1348. https://doi.org/10.1093/mnras/stv690

Low-luminosity galaxies may be the building blocks of more luminous systems. Southern African Large Telescope observations of the low-luminosity, early-type galaxy NGC 59 are obtained and analysed. These data are used to measure the stellar populatio... Read More about The stellar populations in the low-luminosity, early-type galaxy NGC 59.

A STUBBORNLY LARGE MASS OF COLD DUST IN THE EJECTA OF SUPERNOVA 1987A (2015)
Journal Article
Matsuura, M., Dwek, E., Barlow, M. J., Babler, B., Baes, M., Meixner, M., …Yates, J. A. A STUBBORNLY LARGE MASS OF COLD DUST IN THE EJECTA OF SUPERNOVA 1987A. Astrophysical Journal, 800(1), 50. https://doi.org/10.1088/0004-637x/800/1/50

We present new Herschel photometric and spectroscopic observations of Supernova 1987A, carried out in 2012. Our dedicated photometric measurements provide new 70 μm data and improved imaging quality at 100 and 160 μm compared to previous observations... Read More about A STUBBORNLY LARGE MASS OF COLD DUST IN THE EJECTA OF SUPERNOVA 1987A.

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., …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).