GASP. XV. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Physical properties of the Jellyfish Galaxy JO201
| العنوان: | GASP. XV. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Physical properties of the Jellyfish Galaxy JO201 |
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| المؤلفون: | Koshy George, Marco Gullieuszik, Benedetta Vulcani, Giovanni Fasano, Yun-Kyeong Sheen, Alessandro Omizzolo, Sean L. McGee, Bianca M. Poggianti, Mauro D'Onofrio, Roy Smith, Daniela Bettoni, Alessia Moretti, Yara L. Jaffé, Jacopo Fritz, George Hau, Callum Bellhouse, Stephanie Tonnesen |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Physics, Line-of-sight, Active galactic nucleus, 010308 nuclear & particles physics, Metallicity, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Astrophysics - Astrophysics of Galaxies, Galaxy, Ram pressure, Stars, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, Stripping (linguistics), Cluster (physics), Astrophysics::Earth and Planetary Astrophysics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics |
| الوصف: | We present a study of the physical properties of JO201, a unique disk galaxy with extended tails undergoing extreme ram-pressure stripping as it moves through the massive cluster Abell 85 at supersonic speeds mostly along the line of sight. JO201 was observed with MUSE as part of the GASP programme. In a previous paper (GASP II) we studied the stellar and gas kinematics. In this paper we present emission-line ratios, gas-phase metallicities and ages of the stellar populations across the galaxy disk and tails. We find that while the emission at the core of the galaxy is dominated by an active galactic nucleus (AGN), the disk is composed of star-forming knots surrounded by excited diffuse gas. The collection of star-forming knots presents a metallicity gradient steadily decreasing from the centre of the galaxy outwards, and the ages of the stars across the galaxy show that the tails formed 17 pages, 12 figures |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::619e852a58c86845110ea4b200c55d78 http://arxiv.org/abs/1902.04486 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....619e852a58c86845110ea4b200c55d78 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |