Výsledky vyhledávání - "Martina Fagioli"

Measurement of the B-band Galaxy Luminosity Function with Approximate Bayesian Computation

Autor: Luca Tortorelli, Martina Fagioli, Adam Amara, Tomasz Kacprzak, Alexandre Refregier, Jörg Herbel

Publikováno v: Journal of Cosmology and Astroparticle Physics, 2020 (9)

The galaxy Luminosity Function (LF) is a key observable for galaxy formation, evolution studies and for cosmology. In this work, we propose a novel technique to forward model wide-field broad-band galaxy surveys using the fast image simulator UFig an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3257a102498bcf9a305f0cc6ae0602dc

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Spectro-Imaging Forward Model of Red and Blue Galaxies

Autor: Martina Fagioli, Luca Tortorelli, Jörg Herbel, Alexandre Refregier, Adam Amara, Dominik Zürcher

Publikováno v: Journal of Cosmology and Astroparticle Physics, 2020 (6)
Fagioli, M, Tortorelli, L, Herbel, J, Zürcher, D, Refregier, A & Amara, A 2020, ' Spectro-imaging forward model of red and blue galaxies ', Journal of Cosmology and Astroparticle Physics, vol. 2020, no. 6, 050 . https://doi.org/10.1088/1475-7516/2020/06/050

For the next generation of spectroscopic galaxy surveys, it is important to forecast their performances and to accurately interpret their large data sets. For this purpose, it is necessary to consistently simulate different populations of galaxies, i

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The MUSE Atlas of Disks (MAD): Ionized gas kinematic maps and an application to Diffuse Ionized Gas

Autor: Sandro Tacchella, Peter M. Weilbacher, Jarle Brinchmann, Masato Onodera, Davor Krajnović, Joanna Woo, Mark den Brok, Santiago Erroz-Ferrer, Eric Emsellem, C. Marcella Carollo, Raffaella Anna Marino, Martina Fagioli

Publikováno v: Monthly Notices of the RAS (0035-8711), 491(3), 4089-4107
Monthly Notices of the RAS (0035-8711)
Monthly Notices of the Royal Astronomical Society, 491(3), 4089-4107

We have obtained data for 41 star forming galaxies in the MUSE Atlas of Disks (MAD) survey with VLT/MUSE. These data allow us, at high resolution of a few 100 pc, to extract ionized gas kinematics ($V, \sigma$) of the centers of nearby star forming g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5698a37144f263d8b66f9e71b97cbc6
http://arxiv.org/abs/1911.06070

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Forward modeling of spectroscopic galaxy surveys: application to SDSS

Autor: Jörg Herbel, Luca Tortorelli, Julian Riebartsch, Martina Fagioli, Andrina Nicola, Adam Amara, Laurenz Gamper, Alexandre Refregier, Chihway Chang

Publikováno v: Journal of Cosmology and Astroparticle Physics, 2018 (11)

Galaxy spectra are essential to probe the spatial distribution of galaxies in our Universe. To better interpret current and future spectroscopic galaxy redshift surveys, it is important to be able to simulate these data sets. We describe Uspec, a for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d23b279207979b11c7a11b84134f24ad
https://doi.org/10.1088/1475-7516/2018/11/015

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NGC 3628-ucd1: a possible ω cen analog embedded in a stellar stream

Autor: David Martinez-Delgado, Samantha J. Penny, Joachim Janz, Jean P. Brodie, Aaron J. Romanowsky, Mark A. Norris, Martina Fagioli, Duncan A. Forbes, Zachary G. Jennings

Publikováno v: Jennings, Z G, Romanowsky, A J, Brodie, J P, Janz, J, Norris, M A, Forbes, D A, Martinez-Delgado, D, Fagioli, M & Penny, S J 2015, ' NGC 3628-UCD1 : A possible $ω$ Cen Analog Embedded in a Stellar Stream ', Astrophysical Journal Letters, vol. 812, no. 1 . https://doi.org/10.1088/2041-8205/812/1/L10

Using Subaru/Suprime-Cam wide-field imaging and both Keck/ESI and LBT/MODS spectroscopy, we identify and characterize a compact star cluster, which we term NGC 3628-UCD1, embedded in a stellar stream around the spiral galaxy NGC 3628. The size and lu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e092dd721acff29c690d448a2cb26e0
https://clok.uclan.ac.uk/15615/1/1509.04710v1.pdf

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How elevated is the dynamical-to-stellar mass ratio of the ultra-compact dwarf S999?

Autor: Martina Fagioli, Aaron J. Romanowsky, Samantha J. Penny, Mark A. Norris, Duncan A. Forbes, Jay Strader, Joachim Janz

Publikováno v: Janz, J, Forbes, D A, Norris, M A, Strader, J, Penny, S J, Fagioli, M & Romanowsky, A J 2015, ' How elevated is the dynamical-to-stellar mass ratio of the ultra-compact dwarf S999? ', Monthly Notices of the Royal Astronomical Society, vol. 449, no. 2, pp. 1716-1730 . https://doi.org/10.1093/mnras/stv389

Here we present new Keck ESI high-resolution spectroscopy and deep archival HST/ACS imaging for S999, an ultra-compact dwarf in the vicinity of M87, which was claimed to have an extremely high dynamical-to-stellar mass ratio. Our data increase the to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fb793758cea847417115bfcbd15c021
http://arxiv.org/abs/1502.06598

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