Výsledky vyhledávání - "Miriani Griselda Pastoriza"

Profile comparison of the 6–9 μm polycyclic aromatic hydrocarbon bands in starburst-dominated galaxies

Autor: Karín Menéndez-Delmestre, Miriani Griselda Pastoriza, Dinalva A. Sales, Amâncio C. S. Friaça, Carla M. Canelo

Publikováno v: Monthly Notices of the Royal Astronomical Society. 507:6177-6195

Polycyclic aromatic hydrocarbons (PAHs) are of great astrochemical and astrobiological interest due to their potential to form prebiotic molecules. We analyse the 7.7 and 8.6 ${\mu}$m PAH bands in 126 predominantly starburst-dominated galaxies extrac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::260aef4dd097ebabde9a1c91ef7249fc
https://doi.org/10.1093/mnras/stab2552

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A Gemini-NIFS view of the merger remnant NGC 34

Autor: Juliana C. Motter, Marlon R. Diniz, Rogemar A. Riffel, D. Ruschel-Dutra, L. G. Dahmer-Hahn, R. A. Riffel, Tiago V. Ricci, Miriani Griselda Pastoriza, N. Z. Dametto, Thaisa Storchi-Bergmann, Alberto Rodríguez-Ardila

The merger remnant NGC 34 is a local luminous infrared galaxy (LIRG) hosting a nuclear starburst and a hard X-ray source associated with a putative, obscured Seyfert~2 nucleus. In this work, we use adaptive optics assisted near infrared (NIR) integra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f28eadc3731476b123f977210d03da6
http://arxiv.org/abs/2107.09731

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Unveiling the nuclear region of NGC 6868: Mapping the stellar population and ionized gas

Autor: J. E. Steiner, Tiago V. Ricci, João P. V. Benedetti, D. Ruschel-Dutra, Miriani Griselda Pastoriza, Rogemar A. Riffel, Juliana C. Motter, Rogério Riffel

Publikováno v: Proceedings of the International Astronomical Union. 15:418-420

We mapped the stellar population and emission gas properties in the nuclear region of NGC 6868 using datacubes extracted with Gemini Multi-Object Spectrograph (GMOS) in the Integral Field Unit (IFU) mode. To obtain the star-formation history of this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bdc9d5fe6583345bfdff4cd09bdbaddb
https://doi.org/10.1017/s1743921320001994

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Destruction and multiple ionization of PAHs by X-rays in circumnuclear regions of AGNs

Autor: Alexsandre F. Lago, Felipe Fantuzzi, Dinalva A. Sales, Heloisa M. Boechat-Roberty, Heidy M Quitián-Lara, Thiago Monfredini, Wania Wolff, E. Mendoza, Miriani Griselda Pastoriza

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

The infrared signatures of polycyclic aromatic hydrocarbons (PAHs) are observed in a variety of astrophysical objects, including the circumnuclear medium of active galactic nuclei (AGNs). These are sources of highly energetic photons (0.2 to 10 keV),

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c037d2766dfbfe41523d11dc31d42581
https://doi.org/10.1093/mnras/stz1021

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Integral field spectroscopy of the inner kpc of the elliptical galaxy NGC 5044

Autor: Suzi Diniz, J. E. Steiner, Rogemar A. Riffel, Rogério Riffel, Miriani Griselda Pastoriza, J. A. Hernandez-Jimenez, Tiago V. Ricci

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We used Gemini Multi-Object Spectrograph (GMOS) in the Integral Field Unit mode to map the stellar population, emission line flux distributions and gas kinematics in the inner kpc of NGC 5044. From the stellar populations synthesis we found that the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72bc653bb5c0a7ba8bcd86668b352147
https://doi.org/10.1093/mnras/stx1322

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Interaction effects on galaxy pairs with Gemini/GMOS- III: stellar population synthesis

Autor: Angela Krabbe, D. A. Rosa, Mónica V. Cardaci, C. Winge, Guillermo F. Hägele, O. L. Dors, Miriani Griselda Pastoriza

Publikováno v: Monthly Notices of the Royal Astronomical Society. 467:27-49

We present an observational study of the impacts of the interactions on the stellar population in a sample of galaxy pairs. Long-slit spectra in the wavelength range 3440-7300 {\AA} obtained with the Gemini Multi-Object Spectrograph (GMOS) at Gemini

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee0e98be2d158e786107a532cea2b912
https://doi.org/10.1093/mnras/stw3128

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NIR–IFU observations of the merger remnant NGC 34

Autor: Rogério Riffel, Miriani Griselda Pastoriza, Juliana C. Motter, Rogemar A. Riffel, Tiago V. Ricci, Alberto Rodríguez-Ardila, D. Ruschel-Dutra, L. G. Dahmer-Hahn, N. Z. Dametto, Thaisa Storchi-Bergmann, Marlon R. Diniz

Publikováno v: Proceedings of the International Astronomical Union. 15:355-356

Understanding the interplay between the phenomena of active galactic nuclei (AGN) and starbursts remains an open issue in studies of galaxy evolution. The galaxy NGC 34 is the remnant of the merger of two former gas-rich disc galaxies and it also hos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb4887571e50e647432b265bc87fef75
https://doi.org/10.1017/s1743921320002033

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A SINFONI view of the nuclear activity and circumnuclear star formation in NGC 4303 - II. Spatially resolved stellar populations

Autor: Santiago Arribas, Miriani Griselda Pastoriza, Ric Davies, Thaisa Storchi-Bergmann, Roberto B. Menezes, L. G. Dahmer-Hahn, A. Labiano, J. Piqueras López, R. A. Riffel, Luis Colina, Dinalva A. Sales, Rogemar A. Riffel, N. Z. Dametto, Leonard Burtscher

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Monthly Notices of the RAS (0035-8711), 482(4), 4437-4453

We present a spatially resolved stellar population study of the inner ∼200 pc radius of NGC 4303 based on near-infrared integral field spectroscopy with SINFONI/VLT at a spatial resolution of 40–80 pc and using the STARLIGHT code. We found that t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0f59c2d9becc188b9be5667b826537f
https://doi.org/10.1093/mnras/sty2996

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Probing evolutionary population synthesis models in the near infrared with early-type galaxies

Autor: N. Z. Dametto, L. G. Dahmer-Hahn, Lucimara P. Martins, Alberto Rodríguez-Ardila, C. Kehrig, Rogério Riffel, Timothy M. Heckman, Miriani Griselda Pastoriza

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname

We performed a near-infrared (NIR; ~1.0 -2.4 μm) stellar population study in a sample of early-type galaxies. The synthesis was performed using five different evolutionary population synthesis libraries of models. Our main results can be summarized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d94c74a480bf13ea549937516e36a15
http://hdl.handle.net/10261/206794

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Variations in the 6.2 μm emission profile in starburst-dominated galaxies: a signature of polycyclic aromatic nitrogen heterocycles (PANHs)?

Autor: Carla M. Canelo, Miriani Griselda Pastoriza, Dinalva A. Sales, Amâncio C. S. Friaça, D. Ruschel-Dutra

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Analyses of the polycyclic aromatic hydrocarbon (PAH) feature profiles, especially the 6.2 $\mu$m feature, could indicate the presence of nitrogen incorporated in their aromatic rings. In this work, 155 predominantly starburst-dominated galaxies (inc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7be4c975aa30ca5bc2590fe174c0cfa6

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