SIMBAD references

2023A&A...675A.154V - Astronomy and Astrophysics, volume 675A154 (2023/7-1)

X-Shooting ULLYSES: Massive stars at low metallicity I. Project description.

VINK J.S., MEHNER A., CROWTHER P.A., FULLERTON A., GARCIA M., MARTINS F., MORRELL N., OSKINOVA L.M., ST-LOUIS N., UD-DOULA A., SANDER A.A.C., SANA H., BOURET J.-C., KUBATOVA B., MARCHANT P., MARTINS L.P., WOFFORD A., VAN LOON J.T., TELFORD O.G., GOTBERG Y., BOWMAN D.M., ERBA C., KALARI V.M., ABDUL-MASIH M., ALKOUSA T., BACKS F., BARBOSA C.L., BERLANAS S.R., BERNINI-PERON M., BESTENLEHNER J.M., BLOMME R., BODENSTEINER J., BRANDS S.A., EVANS C.J., DAVID-URAZ A., DRIESSEN F.A., DSILVA K., GEEN S., GOMEZ-GONZALEZ V.M.A., GRASSITELLI L., HAMANN W.-R., HAWCROFT C., HERRERO A., HIGGINS E.R., HILLIER D.J., IGNACE R., ISTRATE A.G., KAPER L., KEE N.D., KEHRIG C., KESZTHELYI Z., KLENCKI J., DE KOTER A., KUIPER R., LAPLACE E., LARKIN C.J.K., LEFEVER R.R., LEITHERER C., LENNON D.J., MAHY L., MAIZ APELLANIZ J., MARAVELIAS G., MARCOLINO W., McLEOD A.F., DE MINK S.E., NAJARRO F., OEY M.S., PARSONS T.N., PAULI D., PEDERSEN M.G., PRINJA R.K., RAMACHANDRAN V., RAMIREZ-TANNUS M.C., SABHAHIT G.N., SCHOOTEMEIJER A., REYERO SERANTES S., SHENAR T., STRINGFELLOW G.S., SUDNIK N., TRAMPER F. and WANG L.

Abstract (from CDS):

Observations of individual massive stars, super-luminous supernovae, gamma-ray bursts, and gravitational wave events involving spectacular black hole mergers indicate that the low-metallicity Universe is fundamentally different from our own Galaxy. Many transient phenomena will remain enigmatic until we achieve a firm understanding of the physics and evolution of massive stars at low metallicity (Z). The Hubble Space Telescope has devoted 500 orbits to observing ∼250 massive stars at low Z in the ultraviolet (UV) with the COS and STIS spectrographs under the ULLYSES programme. The complementary X-Shooting ULLYSES (XShootU) project provides an enhanced legacy value with high-quality optical and near-infrared spectra obtained with the wide-wavelength coverage X-shooter spectrograph at ESO's Very Large Telescope. We present an overview of the XShootU project, showing that combining ULLYSES UV and XShootU optical spectra is critical for the uniform determination of stellar parameters such as effective temperature, surface gravity, luminosity, and abundances, as well as wind properties such as mass-loss rates as a function of Z. As uncertainties in stellar and wind parameters percolate into many adjacent areas of astrophysics, the data and modelling of the XShootU project is expected to be a game changer for our physical understanding of massive stars at low Z. To be able to confidently interpret James Webb Space Telescope spectra of the first stellar generations, the individual spectra of low-Z stars need to be understood, which is exactly where XShootU can deliver.

Abstract Copyright: © The Authors 2023

Journal keyword(s): stars: atmospheres - stars: early-type - stars: winds - outflows - stars: evolution - methods: observational - galaxies: dwarf

VizieR on-line data: <Available at CDS (J/A+A/675/A154): tableb1.dat refb1.dat tableb2.dat refb2.dat>

Simbad objects: 256

Full paper

View the references in ADS

To bookmark this query, right click on this link: simbad:2023A&A...675A.154V and select 'bookmark this link' or equivalent in the popup menu