More Like this

1. A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): V. Properties of the ionised gas filament of M 87⋆

   https://doi.org/10.1051/0004-6361/201834492  

   Boselli, A. ; Fossati, M. ; Longobardi, A. ; Consolandi, G. ; Amram, P. ; Sun, M. ; Andreani, P. ; Boquien, M. ; Braine, J. ; Combes, F. ; et al ( March 2019 , Astronomy & Astrophysics)
2. A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): III. Star formation in the stripped gas of NGC 4254★

   https://doi.org/10.1051/0004-6361/201732410  

   Boselli, A. ; Fossati, M. ; Cuillandre, J. C. ; Boissier, S. ; Boquien, M. ; Buat, V. ; Burgarella, D. ; Consolandi, G. ; Cortese, L. ; Côté, P. ; et al ( July 2018 , Astronomy & Astrophysics)
3. A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): I. Introduction to the survey★

   https://doi.org/10.1051/0004-6361/201732407  

   Boselli, A. ; Fossati, M. ; Ferrarese, L. ; Boissier, S. ; Consolandi, G. ; Longobardi, A. ; Amram, P. ; Balogh, M. ; Barmby, P. ; Boquien, M. ; et al ( June 2018 , Astronomy & Astrophysics)
4. A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): II. Constraining the quenching time in the stripped galaxy NGC 4330

   https://doi.org/10.1051/0004-6361/201732373  

   Fossati, M. ; Mendel, J. T. ; Boselli, A. ; Cuillandre, J. C. ; Vollmer, B. ; Boissier, S. ; Consolandi, G. ; Ferrarese, L. ; Gwyn, S. ; Amram, P. ; et al ( June 2018 , Astronomy & Astrophysics)
5. A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): VI. Environmental quenching on HII-region scales

   https://doi.org/10.1051/0004-6361/201937310  

   Boselli, A. ; Fossati, M. ; Longobardi, A. ; Boissier, S. ; Boquien, M. ; Braine, J. ; Côté, P. ; Cuillandre, J. C. ; Epinat, B. ; Ferrarese, L. ; et al ( February 2020 , Astronomy & Astrophysics)

   The Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) is a blind narrow-band H α + [NII] imaging survey of the Virgo cluster carried out with MegaCam at the Canada-French-Hawaii telescope. We use a new set of data extracted from VESTIGE to study the impact of the hostile cluster environment on the star formation process down to the scale of HII regions (∼50 pc). Here, HII regions are identified and their parameters measured using the HII PHOT code on a sample of 114 late-type galaxies spanning a wide range in morphological type (Sa-Sd, Im, BCD), stellar mass (10 6.5  ≤  M star  ≤ 10 11 M ⊙ ), and star formation activity (10 −3  ≤ SFR ≤ 10 M ⊙ yr −1 ). Owing to the exquisite average resolution of the VESTIGE data (0.65 arcsec), we detect 11302 HII regions with an H α luminosity L (H α ) ≥ 10 37 erg s −1 . We show that the typical number of HII regions in gas-stripped objects is significantly lower than in healthy late-types of similar stellar mass. We also show that in these gas-stripped galaxies the number of HII regions significantly drops outside the effective radius, suggesting that the quenching process occurs outside-in, in agreement with other multifrequency observations. These new results consistently confirm that the main mechanism responsible for the decrease of the star formation activity observed in cluster galaxies is ram pressure, allowing us to discard other milder processes such as starvation or strangulation, which are unable to reproduce the observed radially truncated profiles. 

   more » « less