Zobrazeno 1 - 10 of 22 pro vyhledávání: '"Mathieu Powalka"'
1
The Next Generation Virgo Cluster Survey (NGVS). XXXII. A Search for Globular Cluster Substructures in the Virgo Galaxy Cluster Core
Autor: Joel Roediger, Simona Mei, Stephen Gwyn, Thomas H. Puzia, Eric W. Peng, Hong-Xin Zhang, A. Longobardi, P. Hudelot, Mathieu Powalka, Paul Eigenthaler, Rubén Sánchez-Janssen, Ariane Lançon, Chengze Liu, Patrick R. Durrell, John P. Blakeslee, Laura Ferrarese, Puragra Guhathakurta, Karla Alamo-Martínez, Roberto Munoz, Jean-Charles Cuillandre, Patrick Côté, E. Toloba, Pierre-Alain Duc
Publikováno v: The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2018, 856 (1), pp.84. ⟨10.3847/1538-4357/aaae63⟩
The Astrophysical Journal, 2018, 856 (1), pp.84. ⟨10.3847/1538-4357/aaae63⟩
Substructure in globular cluster (GC) populations around large galaxies is expected in galaxy formation scenarios that involve accretion or merger events, and it has been searched for using direct associations between GCs and structure in the diffuse
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78ed9721a4c53284d624373c95f99785
https://hal.archives-ouvertes.fr/hal-02294223
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2
The Next Generation Fornax Survey (NGFS): II. The Central Dwarf Galaxy Population
Autor: M. Hilker, Joel Roediger, Patrick Côté, Roberto Munoz, Simón Ángel, Bryan W. Miller, Steffen Mieske, Laura Ferrarese, Paul Eigenthaler, Karla Alamo-Martínez, Maurizio Paolillo, Yasna Ordenes-Briceño, Mathieu Powalka, Rubén Sánchez-Janssen, Gaspar Galaz, Eva K. Grebel, Tom Richtler, Maren Hempel, Ariane Lançon, Yu Rong, Massimo Capaccioli, Karen X. Ribbeck, Matthew A. Taylor, Chelsea Spengler, Hong-Xin Zhang, Thomas H. Puzia
Publikováno v: The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2018, 855 (2), pp.142. ⟨10.3847/1538-4357/aaab60⟩
NASA Astrophysics Data System
We present a photometric study of the dwarf galaxy population in the core region ($< r_{\rm vir}/4$) of the Fornax galaxy cluster based on deep $u'g'i'$ photometry from the Next Generation Fornax Cluster Survey. All imaging data were obtained with th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb5b728bb97f28cc4284536b836f0ada
http://arxiv.org/abs/1801.02633
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3
Virgo Redux: The Masses and Stellar Content of Nuclei in Early-type Galaxies from Multiband Photometry and Spectroscopy
Autor: Laura Ferrarese, Puragra Guhathakurta, Joel Roediger, Jean-Charles Cuillandre, Patrick Côté, Rubén Sánchez-Janssen, Roberto Munoz, Yiqing Liu, Simona Mei, Ariane Lançon, Mathieu Powalka, Andrew Zirm, Chelsea Spengler, E. Toloba, Stephen Gwyn, Thomas H. Puzia, Eric W. Peng
Publikováno v: The Astrophysical journal letters
The Astrophysical journal letters, 2017, 849 (1), pp.55. ⟨10.3847/1538-4357/aa8a78⟩
The Astrophysical journal letters, Bristol : IOP Publishing, 2017, 849 (1), pp.55. ⟨10.3847/1538-4357/aa8a78⟩
We present an analysis of 39 nuclei and their early-type hosts in the Virgo Cluster using ten broadband filters: F300W, F475W, F850LP, F160W, $u^*griz$, and $K_s$. We describe the Virgo Redux program, which provides high-resolution UV and NIR imaging
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b383efddefefbea5bbd8bb4dda8117fb
https://hal.science/hal-02190144
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4
The Next Generation Virgo Cluster Survey (NGVS). XXVI. The Issues of Photometric Age and Metallicity Estimates for Globular Clusters
Autor: Hong-Xin Zhang, E. Toloba, Pierre-Alain Duc, Laura Ferrarese, Stephen Gwyn, Thomas H. Puzia, Joel Roediger, Jean-Charles Cuillandre, Patrick Côté, Rubén Sánchez-Janssen, Ariane Lançon, Eric W. Peng, Chengze Liu, Puragra Guhathakurta, Mathieu Powalka, P. Hudelot, Roberto Munoz, Patrick R. Durrell, Simona Mei, John P. Blakeslee
Publikováno v: The Astrophysical journal letters
The Astrophysical journal letters, 2017, 844 (2), pp.104. ⟨10.3847/1538-4357/aa77b1⟩
The Astrophysical journal letters, Bristol : IOP Publishing, 2017, 844 (2), pp.104. ⟨10.3847/1538-4357/aa77b1⟩
Large samples of globular clusters (GC) with precise multi-wavelength photometry are becoming increasingly available and can be used to constrain the formation history of galaxies. We present the results of an analysis of Milky Way (MW) and Virgo cor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b90e6b60d9fa8d7cfe325c3bdd8a5c5f
https://hal.science/hal-02174347
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5
The Next Generation Virgo Cluster Survey. XXII. Shell Feature Early-type Dwarf Galaxies in the Virgo Cluster
Autor: Rubén Sánchez-Janssen, Hong-Xin Zhang, J. Christopher Mihos, Sanjaya Paudel, Patrick Côté, S. D. J. Gwyn, Alessandro Boselli, Simona Mei, Rory Smith, Elisa Toloba, Puragra Guhathakurta, Michele Cantiello, Pierre-Alain Duc, Mathieu Powalka, Laura Ferrarese, Eric W. Peng, Jean-Charles Cuillandre, John P. Blakeslee
Publikováno v: The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2017, 834
The Astrophysical journal letters
The Astrophysical journal letters, 2017, 834 (1), pp.66. ⟨10.3847/1538-4357/834/1/66⟩
The Astrophysical journal letters, Bristol : IOP Publishing, 2017, 834 (1), pp.66. ⟨10.3847/1538-4357/834/1/66⟩
The Next Generation Virgo Cluster Survey is a deep (with a $2\sigma$ detection limit $\mu_g$ = 29~mag~arcsec$^{-2}$ in the $g-$band) optical panchromatic survey targeting the Virgo cluster from its core to virial radius, for a total areal coverage of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::337f79f4e41c5db98fbb6466c7eae029
http://hdl.handle.net/20.500.12386/26777
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7
New Constraints on a complex relation between globular cluster colors and environment
Autor: Patrick R. Durrell, Mathieu Powalka, Harald Kuntschner, Roberto Munoz, Elisa Toloba, Chelsea Spengler, Laura Ferrarese, Stephen Gwyn, Thomas H. Puzia, Simón Ángel, Yasna Ordenes-Briceño, Rubén Sánchez-Janssen, Eric W. Peng, Joel Roediger, Hong-Xin Zhang, Sungsoon Lim, Mariya Lyubenova, F. Schönebeck, Jean-Charles Cuillandre, Patrick Côté, Karla Alamo-Martínez, Eva K. Grebel, J. Christopher Mihos, John P. Blakeslee, Chengze Liu, Puragra Guhathakurta, Ariane Lançon, Pierre-Alain Duc
Publikováno v: The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2016, 829 (1), pp.L5. ⟨10.3847/2041-8205/829/1/L5⟩
The Astrophysical Journal, 829(1):L5. IOP PUBLISHING LTD
We present an analysis of high-quality photometry for globular clusters (GCs) in the Virgo cluster core region, based on data from the Next Generation Virgo Cluster Survey (NGVS) pilot field, and in the Milky Way (MW) based on VLT/X-Shooter spectroph
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3acf130d96ab6cf0efe418307fa0432e
http://arxiv.org/abs/1608.08628
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8
The Next Generation Virgo cluster Survey (NGVS). XXV. Fiducial panchromatic colors of Virgo core globular clusters and their comparison to model predictions
Autor: Pierre-Alain Duc, P. Hudelot, Ariane Lançon, Laura Ferrarese, Rubén Sánchez-Janssen, Roberto Munoz, Chengze Liu, Puragra Guhathakurta, Joel Roediger, Elisa Toloba, John P. Blakeslee, Simona Mei, Hong-Xin Zhang, Stephen Gwyn, Thomas H. Puzia, Eric W. Peng, Mathieu Powalka, Jean-Charles Cuillandre, Patrick Côté, Patrick R. Durrell
Publikováno v: Astrophys.J.Suppl.
Astrophys.J.Suppl., 2016, 227 (1), pp.12. ⟨10.3847/0067-0049/227/1/12⟩
The Astrophysical Journal Supplement Series
The Astrophysical Journal Supplement Series, IOPscience 2016, 227 (1), pp.12. ⟨10.3847/0067-0049/227/1/12⟩
Astrophys.J.Suppl., 2016, 227 (1), pp.12. 〈10.3847/0067-0049/227/1/12〉
The central region of the Virgo cluster of galaxies contains thousands of globular clusters (GCs), an order of magnitude more than the numbers found in the Local Group. Relics of early star formation epochs in the universe, these GCs also provide ide
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c47dc73decfa2f9c9fffc492a52493b9
https://hal.science/hal-01554124
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