Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Joanna M. Piotrowska"'
Autor:
Elias Kammoun, Anne M. Lohfink, Megan Masterson, Dan R. Wilkins, Xiurui Zhao, Mislav Balokovic, Peter G. Boorman, Riley Connors, Paolo Coppi, Andrew Fabian, Javier A. García, Kristin K. Madsen, Nicole Rodriguez Cavero, Navin Sridhar, Daniel Stern, John Tomsick, Thomas Wevers, Dominic J. Walton, Stefano Bianchi, Johannes Buchner, Francesca M. Civano, Giorgio Lanzuisi, Labani Mallick, Giorgio Matt, Andrea Merloni, Emanuele Nardini, Joanna M. Piotrowska, Claudio Ricci, Ka-Wah Wong, Abderahmen Zoghbi
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2024)
The hard X-ray emission in active galactic nuclei (AGN) and black hole X-ray binaries is thought to be produced by a hot cloud of electrons referred to as the corona. This emission, commonly described by a power law with a high-energy cutoff, is sugg
Externí odkaz:
https://doaj.org/article/89d4444f0ddb4266a2823787d2cadb21
Autor:
Hsi-An Pan, Lihwai Lin, Sara L. Ellison, Mallory D. Thorp, Sebastián F. Sánchez, Asa F. L. Bluck, Francesco Belfiore, Joanna M. Piotrowska, Jillian M. Scudder, William M. Baker
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 120 (2024)
Star formation quenching is one of the key processes that shape the evolution of galaxies. In this study, we investigate the changes in molecular gas and star formation properties as galaxies transit from the star-forming main sequence to the passive
Externí odkaz:
https://doaj.org/article/beb4ec73ab4b45ce9d0e1bec9d01a993
Autor:
Asa F. L. Bluck, Christopher J. Conselice, Katherine Ormerod, Joanna M. Piotrowska, Nathan Adams, Duncan Austin, Joseph Caruana, K. J. Duncan, Leonardo Ferreira, Paul Goubert, Thomas Harvey, James Trussler, Roberto Maiolino
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 163 (2024)
We present an analysis of the quenching of star formation in massive galaxies ( M _* > 10 ^9.5 M _⊙ ) within the first 0.5–3 Gyr of the Universe’s history utilizing JWST-CEERS data. We utilize a combination of advanced statistical methods to ac
Externí odkaz:
https://doaj.org/article/5e2ff2c7b81540409d12fdd817d0bd4e
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 108 (2023)
We identify the intrinsic dependence of star formation quenching on a variety of galactic and environmental parameters, utilizing a machine-learning approach with Random Forest classification. We have previously demonstrated the power of this techniq
Externí odkaz:
https://doaj.org/article/e3c6e4afc6c64530bf346dff1e68f279
Autor:
Giulia Tozzi, Roberto Maiolino, Giovanni Cresci, Joanna M Piotrowska, Francesco Belfiore, Mirko Curti, Filippo Mannucci, Alessandro Marconi
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 521:1264-1276
Nebular HeII$\lambda$4686\AA~line emission is useful to unveil active galactic nuclei (AGN) residing in actively star-forming (SF) galaxies, typically missed by the standard BPT classification. Here we adopt the HeII diagnostic to identify hidden AGN
Autor:
Mirko Curti, Francesco D’Eugenio, Stefano Carniani, Roberto Maiolino, Lester Sandles, Joris Witstok, William M Baker, Jake S Bennett, Joanna M Piotrowska, Sandro Tacchella, Stephane Charlot, Kimihiko Nakajima, Gabriel Maheson, Filippo Mannucci, Amirnezam Amiri, Santiago Arribas, Francesco Belfiore, Nina R Bonaventura, Andrew J Bunker, Jacopo Chevallard, Giovanni Cresci, Emma Curtis-Lake, Connor Hayden-Pawson, Gareth C Jones, Nimisha Kumari, Isaac Laseter, Tobias J Looser, Alessandro Marconi, Michael V Maseda, Jan Scholtz, Renske Smit, Hannah Übler, Imaan E B Wallace
Publikováno v:
Curti, M, D'Eugenio, F, Carniani, S, Maiolino, R, Sandles, L, Witstok, J, Baker, W M, Bennett, J S, Piotrowska, J M, Tacchella, S, Charlot, S, Nakajima, K, Maheson, G, Mannucci, F, Amiri, A, Arribas, S, Belfiore, F, Bonaventura, N R, Bunker, A J, Chevallard, J, Cresci, G, Curtis-Lake, E, Hayden-Pawson, C, Jones, G C, Kumari, N, Laseter, I, Looser, T J, Marconi, A, Maseda, M, Scholtz, J, Smit, R, Ubler, H & Wallace, I E B 2023, ' The chemical enrichment in the early Universe as probed by JWST via direct metallicity measurements at z similar to 8 ', Monthly Notices of the Royal Astronomical Society, vol. 518, no. 1, pp. 425-438 . https://doi.org/10.1093/mnras/stac2737
We analyse the chemical properties of three z~8 galaxies behind the galaxy cluster SMACS J0723.3-7327, observed as part of the Early Release Observations programme of the James Webb Space Telescope (JWST). Exploiting [O III]4363 auroral line detectio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10505c2a0f7165db28859637c58437f2
http://arxiv.org/abs/2207.12375
http://arxiv.org/abs/2207.12375
Autor:
Sara L. Ellison, Asa F. L. Bluck, Roberto Maiolino, Hossen Teimoorinia, Christopher J. Conselice, James Trussler, Joanna M Piotrowska, Sebastián F. Sánchez, Mallory D. Thorp, Jorge Moreno
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 499:230-268
We investigate how star formation quenching proceeds within central and satellite galaxies using spatially resolved spectroscopy from the SDSS-IV MaNGA DR15. We adopt a complete sample of star formation rate surface densities ($\Sigma_{\rm SFR}$), de
Autor:
Asa F. L. Bluck, Roberto Maiolino, Simcha Brownson, Christopher J. Conselice, Sara L. Ellison, Joanna M. Piotrowska, Mallory D. Thorp
We present an analysis of the quenching of star formation in galaxies, bulges, and disks throughout the bulk of cosmic history, from $z=2-0$. We utilise observations from the SDSS and MaNGA at low redshifts. We complement these data with observations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03e2d08819233310568b176a08f4cd54
http://arxiv.org/abs/2201.07814
http://arxiv.org/abs/2201.07814
Autor:
J. Sabater, Judith H. Croston, B Barkus, B. Webster, Martin J. Hardcastle, Beatriz Mingo, R. I. J. Mostert, Joanna M Piotrowska, Philip Best, H. J. A. Röttgering, Wendy L. Williams
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 509(1), 1-15
Barkus, B, Croston, J H, Piotrowska, J, Mingo, B, Best, P N, Hardcastle, M J, Mostert, R I J, Röttgering, H J A, Sabater, J, Webster, B & Williams, W L 2022, ' The Application of Ridgelines in Extended Radio Source Cross-Identification ', Monthly Notices of the Royal Astronomical Society, vol. 509, no. 1, pp. 1-15 . https://doi.org/10.1093/mnras/stab2952
Barkus, B, Croston, J H, Piotrowska, J, Mingo, B, Best, P N, Hardcastle, M J, Mostert, R I J, Röttgering, H J A, Sabater, J, Webster, B & Williams, W L 2022, ' The Application of Ridgelines in Extended Radio Source Cross-Identification ', Monthly Notices of the Royal Astronomical Society, vol. 509, no. 1, pp. 1-15 . https://doi.org/10.1093/mnras/stab2952
Extended radio sources are an important minority population in modern deep radio surveys, because they enable detailed investigation of the physics governing radio-emitting regions such as active galaxies and their environments. Cross-identification
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c76f8a2013ff9d09640c8851d970f6e3
https://doi.org/10.1093/mnras/stab2952
https://doi.org/10.1093/mnras/stab2952
Autor:
Sara L. Ellison, Mallory D. Thorp, Joanna M Piotrowska, Sebastián F. Sánchez, Roberto Maiolino, Hossen Teimoorinia, Asa F. L. Bluck, Kevin Bundy
Publikováno v:
Monthly Notices of the Royal Astronomical Society
We present an analysis of star formation and quenching in the SDSS-IV MaNGA-DR15, utilising over 5 million spaxels from $\sim$3500 local galaxies. We estimate star formation rate surface densities ($\Sigma_{\rm SFR}$) via dust corrected $H\alpha$ flu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2212818dc2473022f2655c11c473423b
http://arxiv.org/abs/1911.08857
http://arxiv.org/abs/1911.08857