Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Rahmani P"'
Autor:
Volpert, Carolyn G., Barrentine, Emily M., Mirzaei, Mona, Barlis, Alyssa, Bolatto, Alberto D., Bulcha, Berhanu, Cataldo, Giuseppe, Connors, Jake A., Costen, Nicholas, Ehsan, Negar, Essinger-Hileman, Thomas, Glenn, Jason, Hays-Wehle, James P., Hess, Larry A., Kogut, Alan J., Moseley, Harvey, Mugge-Durum, Jonas, Noroozian, Omid, Oxholm, Trevor M., Rahmani, Maryam, Stevenson, Thomas, Switzer, Eric R., Watson, Joseph, Wollack, Edward J.
The current state of far-infrared astronomy drives the need to develop compact, sensitive spectrometers for future space and ground-based instruments. Here we present details of the $\rm \mu$-Spec spectrometers currently in development for the far-in
Externí odkaz:
http://arxiv.org/abs/2208.02786
Autor:
Srianand, Raghunathan, Gupta, Neeraj, Petitjean, Patrick, Momjian, Emmanuel, Balashev, Sergei A., Combes, Francoise, Chen, Hsiao-Wen, Krogager, Jens-Kristian, Noterdaeme, Pasquier, Rahmani, Hadi, Baker, Andrew J., Emig, Kimberly L., Jozsa, Gyula I. G., Kloeckner, Hans-Rainer, Moodley, Kavilan
We report the emergence of a new HI 21-cm absorption at z_abs = 1.172635 in the damped Lyman-alpha absorber (DLA) towards the gamma-ray blazar PKS 2355-106 (z_em~1.639) using science verification observations (June 2020) from the MeerKAT Absorption L
Externí odkaz:
http://arxiv.org/abs/2207.01807
Autor:
Augustin, Ramona, Péroux, Céline, Hamanowicz, Aleksandra, Kulkarni, Varsha, Rahmani, Hadi, Zanella, Anita
Determining the clumpiness of matter around galaxies is pivotal to a full understanding of the spatially inhomogeneous, multi-phase gas in the circumgalactic medium (CGM). We combine high spatially resolved 3D observations with hydrodynamical cosmolo
Externí odkaz:
http://arxiv.org/abs/2105.11480
Autor:
Szakacs, Roland, Péroux, Céline, Zwaan, Martin, Hamanowicz, Aleksandra, Klitsch, Anne, Fresco, Alejandra Y., Augustin, Ramona, Biggs, Andrew, Kulkarni, Varsha, Rahmani, Hadi
We present results of MUSE-ALMA Halos, an ongoing study of the Circumgalactic Medium (CGM) of galaxies ($z \leq$ 1.4). Using multi-phase observations we probe the neutral, ionised and molecular gas in a sub-sample containing six absorbers and nine as
Externí odkaz:
http://arxiv.org/abs/2105.07280
Autor:
Schroetter, Ilane, Bouché, Nicolas F., Zabl, Johannes, Rahmani, Hadi, Wendt, Martin, Muzahid, Sowgat, Contini, Thierry, Schaye, Joop, Schmidt, Kasper B., Wisotzki, Lutz
Using the MEGAFLOW survey, which consists of a combination of MUSE and UVES observations of 22 quasar fields selected to contain strong MgII absorbers, we measure covering fractions of CIV and MgII as a function of impact parameter $b$ using a novel
Externí odkaz:
http://arxiv.org/abs/2012.04935
Autor:
Hamanowicz, A., Peroux, C., Zwaan, M. A., Rahmani, H., Pettini, M., York, D. G., Klitsch, A., Augustin, R., Krogager, J-K., Kulkarni, V., Fresco, A., Biggs, A. D., Milliard, B., Vernet, J.
We present results of the MUSE-ALMA Halos, an ongoing study of the Circum-Galactic Medium (CGM) of low redshift galaxies (z < 1.4), currently comprising 14 strong HI absorbers in five quasar fields. We detect 43 galaxies associated with absorbers dow
Externí odkaz:
http://arxiv.org/abs/1912.08699
Autor:
Japelj, J., Laigle, C., Puech, M., Pichon, C., Rahmani, H., Dubois, Y., Devriendt, J. E. G., Petitjean, P., Hammer, F., Gendron, E., Kaper, L., Morris, S., Pirzkal, N., Sánchez-Janssen, R., Slyz, A., Vergani, S. D., Yang, Y.
Publikováno v:
A&A 632, A94 (2019)
Mapping of the large-scale structure through cosmic time has numerous applications in the studies of cosmology and galaxy evolution. At $z > 2$, the structure can be traced by the neutral intergalactic medium (IGM) by way of observing the Ly$\alpha$,
Externí odkaz:
http://arxiv.org/abs/1911.00021
Autor:
Poudel, Suraj, Kulkarni, Varsha P., Cashman, Frances H., Frye, Brenda, Peroux, Celine, Rahmani, Hadi, Quiret, Samuel
We present seven new abundance measurements of the elements O, C and Si at z > 4.5, doubling the existing sample of weakly depleted elements in gas-rich galaxies, in order to constrain the first ~1 billion years of cosmic metal evolution. These measu
Externí odkaz:
http://arxiv.org/abs/1910.10023
Autor:
Battaia, Fabrizio Arrigoni, Obreja, Aura, Prochaska, J. Xavier, Hennawi, Joseph F., Rahmani, Hadi, Bañados, Eduardo, Farina, Emanuele P., Cai, Zheng, Man, Allison
We use MUSE/VLT to conduct a survey of $z\sim3$ physical quasar pairs at close separation with a fast observation strategy. Our aim is twofold: (i) explore the Ly$\alpha$ glow around the faint-end of the quasar population; (ii) take advantage of the
Externí odkaz:
http://arxiv.org/abs/1909.00829
Autor:
Maitra, Soumak, Srianand, Raghunathan, Petitjean, Patrick, Rahmani, Hadi, Gaikwad, Prakash, Choudhury, Tirthankar Roy, Pichon, Christophe
We present analysis of two- and three-point correlation functions of Ly$\alpha$ forest (at $2\le z\le 2.5$) using X-Shooter spectra of three background quasar triplets probing transverse separations of 0.5-1.6 pMpc. We present statistics based on tra
Externí odkaz:
http://arxiv.org/abs/1907.02086