Galaxy formation and evolution

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Simulating Jellyfish Galaxies: A Case Study for a Gas-Rich Dwarf Galaxy

(2022)

Authors:

Jaehyun Lee, Taysun Kimm, Jérémy Blaizot, Harley Katz, Wonki Lee, Yun-Kyeong Sheen, Julien Devriendt, Adrianne Slyz
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Building high accuracy emulators for scientific simulations with deep neural architecture search.

Mach. Learn. Sci. Technol. 3 (2022) 1

Authors:

Muhammad Firmansyah Kasim, Duncan Watson-Parris, Lucia Deaconu, Sophy Oliver, Peter W Hatfield, Dustin H Froula, Gianluca Gregori, Matt Jarvis, Samar Khatiwala, Jun Korenaga, Jacob Topp-Mugglestone, Eleonora Viezzer, Sam M Vinko

Fourier formalism for relativistic axion-photon conversion with astrophysical applications

Physical Review D American Physical Society (APS) 105:1 (2022) 016013

Authors:

MC David Marsh, James H Matthews, Christopher Reynolds, Pierluca Carenza
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Optimization of the Observing Cadence for the Rubin Observatory Legacy Survey of Space and Time: A Pioneering Process of Community-focused Experimental Design

The Astrophysical Journal Supplement Series American Astronomical Society 258:1 (2022) 1

Authors:

Federica B Bianco, Željko Ivezić, R Lynne Jones, Melissa L Graham, Phil Marshall, Abhijit Saha, Michael A Strauss, Peter Yoachim, Tiago Ribeiro, Timo Anguita, AE Bauer, Franz E Bauer, Eric C Bellm, Robert D Blum, William N Brandt, Sarah Brough, Márcio Catelan, William I Clarkson, Andrew J Connolly, Eric Gawiser, John E Gizis, Renée Hložek, Sugata Kaviraj, Charles T Liu, Michelle Lochner, Ashish A Mahabal, Rachel Mandelbaum, Peregrine McGehee, Eric H Neilsen, Knut AG Olsen, Hiranya V Peiris, Jason Rhodes, Gordon T Richards, Stephen Ridgway, Megan E Schwamb, Dan Scolnic, Ohad Shemmer, Colin T Slater, Anže Slosar, Stephen J Smartt, Jay Strader, Rachel Street, David E Trilling, Aprajita Verma, AK Vivas, Risa H Wechsler, Beth Willman
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The PHANGS-HST Survey: Physics at High Angular Resolution in Nearby Galaxies with the Hubble Space Telescope

The Astrophysical Journal: Supplement Series American Astronomical Society 258:1 (2022) 10-10

Authors:

JC Lee, BC Whitmore, DA Thilker, S Deger, KL Larson, L Ubeda, GS Anand, M Boquien, R Chandar, DA Dale, E Emsellem, AK Leroy, E Rosolowsky, E Schinnerer, J Schmidt, J Lilly, J Turner, S Van Dyk, RL White, AT Barnes, F Belfiore, F Bigiel, GA Blanc, Y Cao, M Chevance, E Congiu, OV Egorov, SCO Glover, K Grasha, B Groves, JD Henshaw, A Hughes, RS Klessen, E Koch, K Kreckel, JMD Kruijssen, D Liu, LA Lopez, N Mayker, SE Meidt, EJ Murphy, HA Pan, J Pety, M Querejeta, A Razza, T Saito, P Sánchez-Blázquez, F Santoro, A Sardone, F Scheuermann

Abstract:

Molecular gas is believed to be the fuel for star formation and nuclear activity in Seyfert galaxies. To explore the role of magnetic fields in funneling molecular gas into the nuclear region, measurements of the magnetic fields embedded in molecular gas are needed. By applying the new velocity gradient technique (VGT) to ALMA and PAWS's CO isotopolog data, we obtain the first detection of CO-associated magnetic fields in several nearby Seyfert galaxies and their unprecedented high-resolution magnetic field maps. The VGT-measured magnetic fields in molecular gas globally agree with those inferred from existing HAWC+ dust polarization and VLA synchrotron polarization. An overall good alignment between the magnetic fields traced by VGT-CO and by synchrotron polarization may support the correlation between star formation and cosmic ray generation. We find that the magnetic fields traced by VGT-CO have a significant radial component in the central regions of most Seyferts in our sample, where efficient molecular gas inflows or outflows may happen. In particular, we find local misalignment between the magnetic fields traced by CO and dust polarization within the nuclear ring of NGC 1097, and the former aligns with the central bar's orientation. This misalignment reveals different magnetic field configurations in different gas phases and may provide an observational diagnostic for the ongoing multi-phase fueling of Seyfert activity.Comment: 24 pages, 14 figure
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