publication . Preprint . Article . Other literature type . 2018

Stellar streams around the Magellanic Clouds in 4D

Vasily Belokurov; S Duffau; Sergey E. Koposov; Sergey E. Koposov; Denis Erkal; Paula Jofre; Paula Jofre; Julio A. Carballo-Bello; Julio A. Carballo-Bello; Jesus M. Corral-Santana; ...
Open Access English
  • Published: 11 Dec 2018
Abstract
We carried out a spectroscopic follow-up program of the four new stellar stream candidates detected by Belokurov & Koposov (2016) in the outskirts of the Large Magellanic Cloud (LMC) using FORS2 (VLT). The medium-resolution spectra were used to measure the line-of-sight velocities, estimate stellar metallicities and to classify stars into Blue Horizontal Branch (BHB) and Blue Straggler (BS) stars. Using the 4-D phase-space information, we attribute approximately one half of our sample to the Magellanic Clouds, while the rest is part of the Galactic foreground. Only two of the four stream candidates are confirmed kinematically. While it is impossible to estimate ...
Persistent Identifiers
Subjects
arXiv: Astrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::High Energy Astrophysical Phenomena
free text keywords: Astrophysics - Astrophysics of Galaxies, Space and Planetary Science, Astronomy and Astrophysics, Astrophysics, Blue straggler, Small Magellanic Cloud, Halo, Sky, media_common.quotation_subject, media_common, Stars, Horizontal branch, Spectral line, Large Magellanic Cloud, Physics
Funded by
EC| STREAMS
Project
STREAMS
Measuring the Lumpiness of Dark Matter With Tidal Streams
  • Funder: European Commission (EC)
  • Project Code: 308024
  • Funding stream: FP7 | SP2 | ERC
68 references, page 1 of 5

Ahn C. P., et al., 2012, ApJS, 203, 21

Alves D. R., 2004, ApJ, 601, L151

Balbinot E., et al., 2015, MNRAS, 449, 1129

Bechtol K., et al., 2015, ApJ, 807, 50

Beers T. C., 1990, AJ, 99, 323

Bell E. F., Xue X. X., Rix H.-W., Ruhland C., Hogg D. W., 2010, AJ, 140, 1850

Belokurov V., Koposov S. E., 2016, MNRAS, 456, 602

Belokurov V., Erkal D., Deason A. J., Koposov S. E., De Angeli F., Evans D. W., Fraternali F., Mackey D., 2017, MNRAS, 466, 4711

Besla G., Kallivayalil N., Hernquist L., van der Marel R. P., Cox T. J., Kereš D., 2010, ApJ, 721, L97

Besla G., Kallivayalil N., Hernquist L., van der Marel R. P., Cox T. J., Kereš D., 2012, MNRAS, 421, 2109

Besla G., Hernquist L., Loeb A., 2013, MNRAS, 428, 2342

Bland-Hawthorn J., Gerhard O., 2016, ARA&A, 54, 529

Brown W. R., Geller M. J., Kenyon S. J., Kurtz M. J., 2006, ApJ, 647, 303

Busha M. T., Marshall P. J., Wechsler R. H., Klypin A., Primack J., 2011, ApJ, 743, 40

Clewley L., Warren S. J., Hewett P. C., Norris J. E., Peterson R. C., Evans N. W., 2002, MNRAS, 337, 87

68 references, page 1 of 5
Abstract
We carried out a spectroscopic follow-up program of the four new stellar stream candidates detected by Belokurov & Koposov (2016) in the outskirts of the Large Magellanic Cloud (LMC) using FORS2 (VLT). The medium-resolution spectra were used to measure the line-of-sight velocities, estimate stellar metallicities and to classify stars into Blue Horizontal Branch (BHB) and Blue Straggler (BS) stars. Using the 4-D phase-space information, we attribute approximately one half of our sample to the Magellanic Clouds, while the rest is part of the Galactic foreground. Only two of the four stream candidates are confirmed kinematically. While it is impossible to estimate ...
Persistent Identifiers
Subjects
arXiv: Astrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::High Energy Astrophysical Phenomena
free text keywords: Astrophysics - Astrophysics of Galaxies, Space and Planetary Science, Astronomy and Astrophysics, Astrophysics, Blue straggler, Small Magellanic Cloud, Halo, Sky, media_common.quotation_subject, media_common, Stars, Horizontal branch, Spectral line, Large Magellanic Cloud, Physics
Funded by
EC| STREAMS
Project
STREAMS
Measuring the Lumpiness of Dark Matter With Tidal Streams
  • Funder: European Commission (EC)
  • Project Code: 308024
  • Funding stream: FP7 | SP2 | ERC
68 references, page 1 of 5

Ahn C. P., et al., 2012, ApJS, 203, 21

Alves D. R., 2004, ApJ, 601, L151

Balbinot E., et al., 2015, MNRAS, 449, 1129

Bechtol K., et al., 2015, ApJ, 807, 50

Beers T. C., 1990, AJ, 99, 323

Bell E. F., Xue X. X., Rix H.-W., Ruhland C., Hogg D. W., 2010, AJ, 140, 1850

Belokurov V., Koposov S. E., 2016, MNRAS, 456, 602

Belokurov V., Erkal D., Deason A. J., Koposov S. E., De Angeli F., Evans D. W., Fraternali F., Mackey D., 2017, MNRAS, 466, 4711

Besla G., Kallivayalil N., Hernquist L., van der Marel R. P., Cox T. J., Kereš D., 2010, ApJ, 721, L97

Besla G., Kallivayalil N., Hernquist L., van der Marel R. P., Cox T. J., Kereš D., 2012, MNRAS, 421, 2109

Besla G., Hernquist L., Loeb A., 2013, MNRAS, 428, 2342

Bland-Hawthorn J., Gerhard O., 2016, ARA&A, 54, 529

Brown W. R., Geller M. J., Kenyon S. J., Kurtz M. J., 2006, ApJ, 647, 303

Busha M. T., Marshall P. J., Wechsler R. H., Klypin A., Primack J., 2011, ApJ, 743, 40

Clewley L., Warren S. J., Hewett P. C., Norris J. E., Peterson R. C., Evans N. W., 2002, MNRAS, 337, 87

68 references, page 1 of 5
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