SIMBAD references

2025NatAs...9.1375L - Nature Astronomy, 9, 1375-1386 (2025/September-0)

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

LEVAN A.J., JONKER P.G., SACCARDI A., MALESANI D.B., TANVIR N.R., IZZO L., HEINTZ K.E., MATA SANCHEZ D., QUIROLA-VASQUEZ J., TORRES M.A.P., VERGANI S.D., SCHULZE S., ROSSI A., D'AVANZO P., GOMPERTZ B.P., MARTIN-CARRILLO A., DE UGARTE POSTIGO A., SCHNEIDER B., YUAN W., LING Z., ZHANG W., MAO X., LIU Y., SUN H., XU D., ZHU Z., AGUI FERNANDEZ J.F., AMATI L., BAUER F.E., CAMPANA S., CAROTENUTO F., CHRIMES A., VAN DALEN J.N.D., D'ELIA V., DELLA VALLE M., DE PASQUALE M., DHILLON V.S., GALBANY L., GASPARI N., GIANFAGNA G., GOMBOC A., HABEEB N., HARTMANN D., VAN HOOF A.P.C., HU Y., JAKOBSSON P., JULAKANTI Y., KORTH J., KOUVELIOTOU C., LASKAR T., LITTLEFAIR S.P., MAIORANO E., MAO J., MELANDRI A., MILLER M.C., MUKHERJEE T., OATES S.R., O'BRIEN P., PALMERIO J.T., PARVIAINEN H., PIETERSE D.L.A., PIRANOMONTE S., PIRO L., PUGLIESE G., RAVASIO M.E., RAYSON B., SALVATERRA R., SANCHEZ-RAMIREZ R., SARIN N., SHILLING S.P.R., STARLING R.L.C., TAGLIAFERRI G., THAKUR A.L., THONE C.C., WIERSEMA K., WORSSAM I. and ZAFAR T.

Abstract (from CDS):

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.


Abstract Copyright: 2025 The Author(s), under exclusive licence to Springer Nature Limited

Journal keyword(s):

Simbad objects: 16

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2025NatAs...9.1375L and select 'bookmark this link' or equivalent in the popup menu