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The ionizing and heating power of ultraluminous X-ray sources under the geometrical beaming model

K. Kovlakas, T. Fragos, D. Schaerer and A. Mesinger
Astronomy & Astrophysics 665 A28 (2022)
https://doi.org/10.1051/0004-6361/202244252

Diagnostics for PopIII galaxies and direct collapse black holes in the early universe

K Nakajima and R Maiolino
Monthly Notices of the Royal Astronomical Society 513 (4) 5134 (2022)
https://doi.org/10.1093/mnras/stac1242

H α emission in local galaxies: star formation, time variability, and the diffuse ionized gas

Sandro Tacchella, Aaron Smith, Rahul Kannan, Federico Marinacci, Lars Hernquist, Mark Vogelsberger, Paul Torrey, Laura Sales and Hui Li
Monthly Notices of the Royal Astronomical Society 513 (2) 2904 (2022)
https://doi.org/10.1093/mnras/stac818

No correlation of the Lyman continuum escape fraction with spectral hardness

R. Marques-Chaves, D. Schaerer, R. O. Amorín, et al.
Astronomy & Astrophysics 663 L1 (2022)
https://doi.org/10.1051/0004-6361/202243598

No strong dependence of Lyman continuum leakage on physical properties of star-forming galaxies at ≲ z ≲ 3.5

A Saxena, L Pentericci, R S Ellis, et al.
Monthly Notices of the Royal Astronomical Society 511 (1) 120 (2022)
https://doi.org/10.1093/mnras/stab3728

Deciphering stellar metallicities in the early Universe: case study of a young galaxy at z = 4.77 in the MUSE eXtremely Deep Field

Jorryt Matthee, Anna Feltre, Michael Maseda, et al.
Astronomy & Astrophysics 660 A10 (2022)
https://doi.org/10.1051/0004-6361/202142187

Inferring the HII region escape fraction of ionizing photons from infrared emission lines in metal-poor star-forming dwarf galaxies

L. Ramambason, V. Lebouteiller, A. Bik, et al.
Astronomy & Astrophysics 667 A35 (2022)
https://doi.org/10.1051/0004-6361/202243866

Hundreds of Low-mass Active Galaxies in the Galaxy And Mass Assembly (GAMA) Survey

Sheyda Salehirad, Amy E. Reines and Mallory Molina
The Astrophysical Journal 937 (1) 7 (2022)
https://doi.org/10.3847/1538-4357/ac8876

On the Contribution of the X-Ray Source to the Extended Nebular He ii Emission in IZW18

C. Kehrig, M. A. Guerrero, J. M. Vílchez and G. Ramos-Larios
The Astrophysical Journal Letters 908 (2) L54 (2021)
https://doi.org/10.3847/2041-8213/abe41b

The X-SHOOTER Lyman α survey at z = 2 (XLS-z2) I: what makes a galaxy a Lyman α emitter?

Jorryt Matthee, David Sobral, Matthew Hayes, et al.
Monthly Notices of the Royal Astronomical Society 505 (1) 1382 (2021)
https://doi.org/10.1093/mnras/stab1304

The Metallicity Dependence of the High-mass X-Ray Binary Luminosity Function

Bret D. Lehmer, Rafael T. Eufrasio, Antara Basu-Zych, Keith Doore, Tassos Fragos, Kristen Garofali, Konstantinos Kovlakas, Benjamin F. Williams, Andreas Zezas and Luidhy Santana-Silva
The Astrophysical Journal 907 (1) 17 (2021)
https://doi.org/10.3847/1538-4357/abcec1

Can nebular He II emission be explained by ultra-luminous X-ray sources?

Charlotte Simmonds, Daniel Schaerer and Anne Verhamme
Astronomy & Astrophysics 656 A127 (2021)
https://doi.org/10.1051/0004-6361/202141856

A Sample of Massive Black Holes in Dwarf Galaxies Detected via [Fe x] Coronal Line Emission: Active Galactic Nuclei and/or Tidal Disruption Events

Mallory Molina, Amy E. Reines, Lilikoi Latimer, Vivienne Baldassare and Sheyda Salehirad
The Astrophysical Journal 922 (2) 155 (2021)
https://doi.org/10.3847/1538-4357/ac1ffa

Spectral Signatures of Population iii and Envelope-stripped Stars in Galaxies at the Epoch of Reionization

Elizabeth Berzin, Amy Secunda, Renyue Cen, Alexander Menegas and Ylva Götberg
The Astrophysical Journal 918 (1) 5 (2021)
https://doi.org/10.3847/1538-4357/ac0af6

A fundamental plane in X-ray binary activity of external galaxies

Yoshiyuki Inoue, Kiyoto Yabe and Yoshihiro Ueda
Publications of the Astronomical Society of Japan 73 (5) 1315 (2021)
https://doi.org/10.1093/pasj/psab077

The VANDELS Survey: new constraints on the high-mass X-ray binary populations in normal star-forming galaxies at 3 < z < 5.5

A Saxena, R S Ellis, P U Förster, et al.
Monthly Notices of the Royal Astronomical Society 505 (4) 4798 (2021)
https://doi.org/10.1093/mnras/stab1575

Metal-THINGS: On the Metallicity and Ionization of ULX Sources in NGC 925

Maritza A. Lara-López, Igor A. Zinchenko, Leonid S. Pilyugin, Madusha L. P. Gunawardhana, Omar López-Cruz, Shane P. O’Sullivan, Anna Feltre, Margarita Rosado, Mónica Sánchez-Cruces, Jacopo Chevallard, Maria Emilia De Rossi, Sami Dib, Jacopo Fritz, Isaura Fuentes-Carrera, Luis E. Garduño and Eduardo Ibar
The Astrophysical Journal 906 (1) 42 (2021)
https://doi.org/10.3847/1538-4357/abc892

EMPRESS. II. Highly Fe-enriched Metal-poor Galaxies with ∼1.0 (Fe/O)⊙ and 0.02 (O/H)⊙: Possible Traces of Supermassive (>300 M ⊙) Stars in Early Galaxies* † ‡

Takashi Kojima, Masami Ouchi, Michael Rauch, Yoshiaki Ono, Kimihiko Nakajima, Yuki Isobe, Seiji Fujimoto, Yuichi Harikane, Takuya Hashimoto, Masao Hayashi, Yutaka Komiyama, Haruka Kusakabe, Ji Hoon Kim, Chien-Hsiu Lee, Shiro Mukae, Tohru Nagao, Masato Onodera, Takatoshi Shibuya, Yuma Sugahara, Masayuki Umemura and Kiyoto Yabe
The Astrophysical Journal 913 (1) 22 (2021)
https://doi.org/10.3847/1538-4357/abec3d

Ultrafaint [C ii] Emission in a Redshift = 2 Gravitationally Lensed Metal-poor Dwarf Galaxy

Matus Rybak, E. da Cunha, B. Groves, J. A. Hodge, M. Aravena, M. Maseda, L. Boogaard, D. Berg, S. Charlot, R. Decarli, D. K. Erb, E. Nelson, C. Pacifici, K. B. Schmidt, F. Walter and A. van der Wel
The Astrophysical Journal 909 (2) 130 (2021)
https://doi.org/10.3847/1538-4357/abd946

Large binocular telescope observations of new six compact star-forming galaxies with [Ne v] λ3426 Å emission

Y I Izotov, T X Thuan and N G Guseva
Monthly Notices of the Royal Astronomical Society 508 (2) 2556 (2021)
https://doi.org/10.1093/mnras/stab2798

Recovery and analysis of rest-frame UV emission lines in 2052 galaxies observed with MUSE at 1.5 K. B. Schmidt, J. Kerutt, L. Wisotzki, et al.
Astronomy & Astrophysics 654 A80 (2021)
https://doi.org/10.1051/0004-6361/202140876

Accretion disc cooling and narrow absorption lines in the tidal disruption event AT 2019dsg

G Cannizzaro, T Wevers, P G Jonker, et al.
Monthly Notices of the Royal Astronomical Society 504 (1) 792 (2021)
https://doi.org/10.1093/mnras/stab851

A puzzling non-detection of [O III] and [C II] from a z ≈ 7.7 galaxy observed with ALMA

C. Binggeli, A. K. Inoue, T. Hashimoto, et al.
Astronomy & Astrophysics 646 A26 (2021)
https://doi.org/10.1051/0004-6361/202038180

Keck Cosmic Web Imager Observations of He ii Emission in I Zw 18

Ryan J. Rickards Vaught, Karin M. Sandstrom and Leslie K. Hunt
The Astrophysical Journal Letters 911 (2) L17 (2021)
https://doi.org/10.3847/2041-8213/abf09b

Contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium

Y. Götberg, S. E. de Mink, M. McQuinn, et al.
Astronomy & Astrophysics 634 A134 (2020)
https://doi.org/10.1051/0004-6361/201936669

The impact of star formation sampling effects on the spectra of lensed z > 6 galaxies detectable with JWST

Anton Vikaeus, Erik Zackrisson and Christian Binggeli
Monthly Notices of the Royal Astronomical Society 492 (2) 1706 (2020)
https://doi.org/10.1093/mnras/stz3523

The properties of He IIλ1640 emitters at z ∼  2.5–5 from the VANDELS survey

A. Saxena, L. Pentericci, M. Mirabelli, et al.
Astronomy & Astrophysics 636 A47 (2020)
https://doi.org/10.1051/0004-6361/201937170

X-ray properties of He ii λ 1640 emitting galaxies in VANDELS

G Zamorani, M Talia, D J McLeod, et al.
Monthly Notices of the Royal Astronomical Society 496 (3) 3796 (2020)
https://doi.org/10.1093/mnras/staa1805

Delayed Photons from Binary Evolution Help Reionize the Universe

Amy Secunda, Renyue Cen, Taysun Kimm, Ylva Götberg and Selma E. de Mink
The Astrophysical Journal 901 (1) 72 (2020)
https://doi.org/10.3847/1538-4357/abaefa

Properties of five z ∼ 0.3–0.4 confirmed LyC leakers: VLT/XShooter observations

N G Guseva, Y I Izotov, D Schaerer, et al.
Monthly Notices of the Royal Astronomical Society 497 (4) 4293 (2020)
https://doi.org/10.1093/mnras/staa2197

High-mass X-ray binaries in nearby metal-poor galaxies: on the contribution to nebular He ii emission

Peter Senchyna, Daniel P Stark, Jordan Mirocha, et al.
Monthly Notices of the Royal Astronomical Society 494 (1) 941 (2020)
https://doi.org/10.1093/mnras/staa586

MEGARA-IFU detection of extended He ii λ4686 nebular emission in the central region of NGC 1569 and its ionization budget

Y D Mayya, E Carrasco, V M A Gómez-González, et al.
Monthly Notices of the Royal Astronomical Society 498 (1) 1496 (2020)
https://doi.org/10.1093/mnras/staa2335

Reconstructing the Observed Ionizing Photon Production Efficiency at z ∼ 2 Using Stellar Population Models

Themiya Nanayakkara, Jarle Brinchmann, Karl Glazebrook, Rychard Bouwens, Lisa Kewley, Kim-Vy Tran, Michael Cowley, Deanne Fisher, Glenn G. Kacprzak, Ivo Labbe and Caroline Straatman
The Astrophysical Journal 889 (2) 180 (2020)
https://doi.org/10.3847/1538-4357/ab65eb