Výsledky vyhledávání

Deciphering the 3-D Orion Nebula-IV: The HH~269 flow emerges from the Orion-S Embedded Molecular Cloud

Autor: N. P. Abel, Gary J. Ferland, C. R. O'Dell

We have extended the membership and determined the 3-D structure of the large (0.19 pc) HH~269 sequence of shocks in the Orion Nebula. All of the components lie along a track that is highly tilted to the plane-of-the-sky and emerge from within the Or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cd41d447571f24fc9ce286a904174ab

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The Diagnostic Potential of JWST in Characterizing Elusive AGNs

Autor: Nathan J. Secrest, Shobita Satyapal, Lara Kamal, Jenna M. Cann, N. P. Abel

It is now clear that a significant population of accreting black holes are undetected by commonly employed optical, mid-infrared color, X-ray, and radio selection methods due to obscuration or contamination of the emission from the nuclear region cau

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d52b81a010b357871f7d9277f2c64bcf
http://arxiv.org/abs/2009.05362

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Warm ISM in the Sgr A complex

Autor: Markus Röllig, R. Simon, N. P. Abel, J. Stutzki, P. García

Publikováno v: Astronomy & Astrophysics. 650:A86

Context. The Arches Cluster – Arched Filaments (AF) system is our Galaxy’s prime example of the complexity involved in the interaction between the strong radiation field of numerous OB stars and their surrounding ISM in extremely harsh environmen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::444f222be1cd686fbf3029b69a697a50
https://doi.org/10.1051/0004-6361/202039295

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Physical conditions in the gas phases of the giant H II region LMC-N 11

Autor: Diane Cormier, Sacha Hony, Remy Indebetouw, F. L. Polles, S. C. Madden, V. Lebouteiller, Min-Young Lee, Annie Hughes, J. Braine, Frédéric Galliano, Maud Galametz, M. A. Requena-Torres, Mélanie Chevance, N. P. Abel

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 632, pp.A106. ⟨10.1051/0004-6361/201936303⟩

(abridged) The ambiguous origin of [CII] 158um in the interstellar medium complicates its use for diagnostics concerning the star-formation rate and physical conditions in photodissociation regions (PDRs). We observed the giant HII region N11 in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08c0840af3a0dffad0ef8025adec44f4
http://arxiv.org/abs/1911.03280

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The Herschel Dwarf Galaxy Survey

Autor: F. L. Polles, I. De Looze, Diane Cormier, Sacha Hony, A. Lambert-Huyghe, N. P. Abel, Frédéric Galliano, S. C. Madden, Vianney Lebouteiller, Maud Galametz

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2019, 626, pp.A23. ⟨10.1051/0004-6361/201834457⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 626, pp.A23. ⟨10.1051/0004-6361/201834457⟩
ASTRONOMY & ASTROPHYSICS

The sensitive infrared telescopes, Spitzer and Herschel, have been used to target low-metallicity star-forming galaxies, allowing us to investigate the properties of their interstellar medium (ISM) in unprecedented detail. Interpretation of the obser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e14c3633eab1f548c9094f848750b9e3
https://hal.archives-ouvertes.fr/hal-02105243

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The structure of the Orion Nebula in the direction of Theta 1 Ori C

Autor: Gary J. Ferland, C. R. O'Dell, N. P. Abel

We have used existing optical emission and absorption lines, [C II] emission lines, and H I absorption lines to create a new model for a Central Column of material near the Trapezium region of the Orion Nebula. This was necessary because recent high

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80e7d54338f1f8484ef923b52b5f2194

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Modeling ionized gas in low-metallicity environments: the Local Group dwarf galaxy IC 10

Autor: F. L. Polles, O. Ł. Karczewski, Sophia Lianou, S. Hony, S. C. Madden, Min-Young Lee, Diane Cormier, N. P. Abel, Frédéric Galliano, Mélanie Chevance, Maud Galametz, V. Lebouteiller

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 622, pp.A119. ⟨10.1051/0004-6361/201833776⟩
Astronomy & Astrophysics
Astronomy and Astrophysics-A&A, 2019, 622, pp.A119. ⟨10.1051/0004-6361/201833776⟩

Our objective is to investigate the physical properties of the ionised gas of the low-metallicity dwarf galaxy, IC 10, at various spatial scales: from individual HII regions to the entire galaxy scale and examine whether diagnostics for integrated me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93885fd992b36ec55476aeeb5d1a34ab
https://hal.sorbonne-universite.fr/hal-02045889/document

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Deciphering the 3D Orion Nebula. II. A Low Ionization Region of Multiple Velocity Components Southwest of θ 1 Ori C Confounds Interpretation of Low Velocity Resolution Studies of Temperature, Density, and Abundance

Autor: C. R. O'Dell, Gary J. Ferland, N. P. Abel

Publikováno v: The Astrophysical Journal. 907:119

We establish that there are two velocity systems along lines-of-sight that contribute to the emission-line spectrum of the the brightest parts of the Orion Nebula. These overlie the Orion-S embedded molecular cloud southwest of the dominant ionizing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc40537c5d7bfcabae9d2d572eb9d54c
https://doi.org/10.3847/1538-4357/abce57

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Deciphering the 3D Orion Nebula. III. Structure on the NE Boundary of the Orion-S Embedded Molecular Cloud

Autor: C. R. O'Dell, Gary J. Ferland, N. P. Abel

Publikováno v: The Astrophysical Journal. 908:162

We have extended the work of Papers I and II of this series to determine at higher spatial resolution the properties of the embedded Orion-S Molecular Cloud that lies within the ionized cavity of the Orion Nebula and of the thin ionized layer that li

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23cc41ed5f923e8c114c9c6680237cbe
https://doi.org/10.3847/1538-4357/abd856

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The Hunt for Intermediate Mass Black Holes in the JWST Era

Autor: Shobita Satyapal, Nathan J. Secrest, Laura Blecha, N. P. Abel, Claudio Ricci, Jenna M. Cann, Mario Gliozzi

Intermediate mass black holes (IMBHs), with masses between 100 to 10^5 M_\odot, represent the link between stellar mass black holes and the supermassive black holes that reside in galaxy centers. While IMBHs are crucial to our understanding of black

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76f15b4cb453c506819784d0db9eed48
http://arxiv.org/abs/1805.09351

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