Fast X-ray transient EP240315A from a Lyman-continuum-leaking galaxy at z ≈ 5

Bibcode
2025NatAs...9.1375L
DOI
10.1038/s41550-025-02612-9
Levan, Andrew J.; Jonker, Peter G.; Saccardi, Andrea; Malesani, Daniele Bjørn; Tanvir, Nial R.; Izzo, Luca; Heintz, Kasper E.; Mata Sánchez, Daniel; Quirola-Vásquez, Jonathan; Torres, Manuel A. P.; Vergani, Susanna D.; Schulze, Steve; Rossi, Andrea; D'Avanzo, Paolo; Gompertz, Benjamin P.; Martin-Carrillo, Antonio; de Ugarte Postigo, Antonio; Schneider, Benjamin; Yuan, Weimin; Ling, Zhixing; Zhang, Wenjie; Mao, Xuan; Liu, Yuan; Sun, Hui; Xu, Dong; Zhu, Zipei; Agüí Fernández, José Feliciano; Amati, Lorenzo; Bauer, Franz E.; Campana, Sergio; Carotenuto, Francesco; Chrimes, Ashley; van Dalen, Joyce N. D.; D'Elia, Valerio; Della Valle, Massimo; De Pasquale, Massimiliano; Dhillon, Vikram S.; Galbany, Lluís; Gaspari, Nicola; Gianfagna, Giulia; Gomboc, Andreja; Habeeb, Nusrin; Hartmann, Dieter; van Hoof, Agnes P. C.; Hu, Youdong; Jakobsson, Pall; Julakanti, Yashaswi; Korth, Judith; Kouveliotou, Chryssa; Laskar, Tanmoy; Littlefair, Stuart P.; Maiorano, Elisabetta; Mao, Jirong; Melandri, Andrea; Miller, M. Coleman; Mukherjee, Tamal; Oates, Samantha R.; O'Brien, Paul; Palmerio, Jesse T.; Parviainen, Hannu; Pieterse, Daniëlle L. A.; Piranomonte, Silvia; Piro, Luigi; Pugliese, Giovanna; Ravasio, Maria E.; Rayson, Ben; Salvaterra, Ruben; Sánchez-Ramírez, Rubén; Sarin, Nikhil; Shilling, Samuel P. R.; Starling, Rhaana L. C.; Tagliaferri, Gianpiero; Thakur, Aishwarya Linesh; Thöne, Christina C.; Wiersema, Klaas; Worssam, Isabelle; Zafar, Tayyaba
Referencia bibliográfica

Nature Astronomy

Fecha de publicación:
9
2025
Número de autores
77
Número de autores del IAC
4
Número de citas
3
Número de citas referidas
2
Descripción
The nature of the minute-to-hour-long fast X-ray transients localized by telescopes such as Chandra, Swift and XMM-Newton remains mysterious, with numerous models suggested for the events. Here we report multi-wavelength observations of EP240315a, a 1,600-s-long transient detected by the Einstein Probe, showing it to have a redshift of z = 4.859. We measure a low column density of neutral hydrogen and directly detect leaking ionizing Lyman continuum. The observed properties are consistent with EP240315a being a long-duration gamma-ray burst, and these observations suggest a possible interpretation in which a substantial fraction of the X-ray-transient population are lower-luminosity examples of similar events. If correct, then sensitive narrow-field searches could be a powerful complementary probe to traditional wide-field transient detection in the identification of samples of gamma-ray-burst-like events into the epoch of reionization.
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Exoplanetas y Astrobiología
La búsqueda de vida en el Universo se ha visto impulsada por los recientes descubrimientos de planetas alrededor de otras estrellas (los llamados exoplanetas), convirtiéndose en uno de los campos más activos dentro de la Astrofísica moderna. En los últimos años los descubrimientos cada vez más numerosos de nuevos exoplanetas y los últimos avances
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Pallé Bago
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Sistema Solar y Sistemas Planetarios (SEYSS)

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