Zobrazeno 1 - 10
of 904
pro vyhledávání: '"LEDOUX, C"'
Autor:
Krogager, J. -K., De Cia, A., Heintz, K. E., Fynbo, J. P. U., Christensen, L. B., Björnsson, G., Jakobsson, P., Jeffreson, S., Ledoux, C., Møller, P., Noterdaeme, P., Palmerio, J., Vergani, S. D., Watson, D.
Publikováno v:
MNRAS 535, 561 (2024)
We study the properties of long gamma-ray burst (GRB) host galaxies using a statistical modelling framework derived to model damped Lyman-$\alpha$ absorbers (DLAs) in quasar spectra at high redshift. The distribution of NHI for GRB-DLAs is $\sim$10 t
Externí odkaz:
http://arxiv.org/abs/2411.03818
Autor:
Lopez, S., Afruni, A., Zamora, D., Tejos, N., Ledoux, C., Hernandez, J., Berg, T. A. M., Cortes, H., Urbina, F., Johnston, E. J., Barrientos, L. F., Bayliss, M. B., Cuellar, R., Krogager, J. K., Noterdaeme, P., Solimano, M.
Publikováno v:
A&A 691, A356 (2024)
We present VLT/MUSE integral-field spectroscopy ($R\approx 1\,800$) of four giant gravitational arcs exhibiting strong C IV absorption at 8 intervening redshifts, $z_{abs}\approx 2.0$--$2.5$. We detect C IV absorption in a total of 222 adjacent and s
Externí odkaz:
http://arxiv.org/abs/2410.03029
Autor:
Catán, V., González-López, J., Solimano, M., Barrientos, L. F., Afruni, A., Aravena, M., Bayliss, M., Hernández, J. A., Ledoux, C., Mahler, G., Tejos, N.
This study aims to investigate the molecular gas content of strongly magnified low-mass star-forming galaxies around the cosmic noon period ($z\sim2$) through observations of CO emission lines and dust continuum emission, both of which serve as trace
Externí odkaz:
http://arxiv.org/abs/2408.07849
Autor:
GRAVITY Collaboration, Abuter, R., Amorim, A., Benisty, M., Berger, J-P., Bonnet, H., Bourdarot, G., Bourget, P., Brandner, W., Clénet, Y., Davies, R., Delplancke-Ströbele, F., Dembet, R., Drescher, A., Eckart, A., Eisenhauer, F., Feuchtgruber, H., Finger, G., Förster-Schreiber, N. M., Garcia, P., Garcia-Lopez, R., Gao, F., Gendron, E., Genzel, R., Gillessen, S., Hartl, M., Haubois, X., Haussmann, F., Henning, T., Hippler, S., Horrobin, M., Jochum, L., Jocou, L., Kaufer, A., Kervella, P., Lacour, S., Lapeyrère, V., Bouquin, J. B. Le, Ledoux, C., Léna, P., Lutz, D., Mang, F., Mérand, A., More, N., Nowak, M., Ott, T., Paumard, T., Perraut, K., Perrin, G., Pfuhl, O., Rabien, S., Ribeiro, D. C., Bordoni, M. Sadun, Shangguan, J., Shimizu, T., Stadler, J., Straub, O., Straubmeier, C., Sturm, E., Tacconi, L. J., Tristram, K. R. W, Vincent, F., von Fellenberg, S., Widmann, F., Wieprecht, E., Woillez, J., Yazici, S., Zins, G.
The detection of low-mass planets orbiting the nearest stars is a central stake of exoplanetary science, as they can be directly characterized much more easily than their distant counterparts. Here, we present the results of our long-term astrometric
Externí odkaz:
http://arxiv.org/abs/2404.08746
Autor:
Kislitsyn, P. A., Balashev, S. A., Murphy, M. T., Ledoux, C., Noterdaeme, P., Ivanchik, A. V.
The theory of Big Bang nucleosynthesis, coupled with an estimate of the primordial deuterium abundance (D/H)_pr, offers insights into the baryon density of the Universe. Independently, the baryon density can be constrained during a different cosmolog
Externí odkaz:
http://arxiv.org/abs/2401.12797
Autor:
Afruni, A., Lopez, S., Anshul, P., Tejos, N., Noterdaeme, P., Berg, T. A. M., Ledoux, C., Solimano, M., Gonzalez-Lopez, J., Gronke, M., Barrientos, F., Johnston, E. J.
Publikováno v:
A&A 680, A112 (2023)
One of the biggest puzzles regarding the circumgalactic medium (CGM) is the structure of its cool ($T\sim10^4$ K) gas phase. While the kinematics of quasar absorption systems suggests the CGM is composed of a population of different clouds, constrain
Externí odkaz:
http://arxiv.org/abs/2310.13732
Autor:
Fynbo, J. P. U., Christensen, L. B., Geier, S. J., Heintz, K. E., Krogager, J. -K., Ledoux, C., Milvang-Jensen, B., Møeller, P., Vejlgaard, S., Viuho, J., Östlin, G.
Publikováno v:
A&A 679, A30 (2023)
We report on further observations of the field of the quasar Q1218+0832. Geier et al. 2019 presented the discovery of the quasar resulting from a search for quasars reddened and dimmed by dust in foreground damped Lyman-alpha absorbers (DLAs). The DL
Externí odkaz:
http://arxiv.org/abs/2308.15781
Autor:
Krogager, J.-K., Fynbo, J. P. U., Heintz, K. E., Geier, S., Ledoux, C., Møller, P., Noterdaeme, P., Venemans, B. P., Vestergaard, M.
We present the results of a new spectroscopic survey for dusty intervening absorption systems, particularly damped Ly alpha absorbers (DLAs), toward reddened quasars. The candidate quasars are selected from mid-infrared photometry from the Wide-field
Externí odkaz:
http://hdl.handle.net/10150/624064
http://arizona.openrepository.com/arizona/handle/10150/624064
http://arizona.openrepository.com/arizona/handle/10150/624064
Autor:
Heintz, K. E., Fynbo, J. P. U., Møller, P., Milvang-Jensen, B., Zabl, J., Maddox, N., Krogager, J.-K., Geier, S., Vestergaard, M., Noterdaeme, P., Ledoux, C.
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be underrepresented in optical quasar surveys. By defining a complete parent sample of the brightest and spatially unresolved quasars in the COSMOS field,
Externí odkaz:
http://hdl.handle.net/10150/622443
http://arizona.openrepository.com/arizona/handle/10150/622443
http://arizona.openrepository.com/arizona/handle/10150/622443
Autor:
Heintz, K. E., Fynbo, J. P. U., Krogager, J.-K., Vestergaard, M., Møller, P., Arabsalmani, M., Geier, S., Noterdaeme, P., Ledoux, C., Saturni, F. G., Venemans, B.
We present the serendipitous discovery of a projected pair of quasi-stellar objects (QSOs) with an angular separation of Delta theta = 4.50 arcsec. The redshifts of the two QSOs are widely different: one, our program target, is a QSO with a spectrum
Externí odkaz:
http://hdl.handle.net/10150/621233
http://arizona.openrepository.com/arizona/handle/10150/621233
http://arizona.openrepository.com/arizona/handle/10150/621233