Alexandra Amon

Brightest Cluster Galaxy ellipticity as proxy for halo shape: Orientation bias, assembly bias, and potential selection effects in SZ-selected clusters

Radhakrishnan Srinivasan, T. Shin, Anja von der Linden, Ricardo Herbonnet et autres

The orientation of triaxial galaxy clusters with respect to the line-of-sight is expected to be one of the prime sources of scatter and potential bias in optical observables (e.g., richness and weak-lensing signal) of galaxy clusters. In this work, we use the …

Brightest Cluster Galaxy ellipticity as proxy for halo shape: Orientation bias, assembly bias, and potential selection effects in SZ-selected clusters

Radhakrishnan Srinivasan, T. Shin, Anja von der Linden, Ricardo Herbonnet et autres

The orientation of triaxial galaxy clusters with respect to the line-of-sight is expected to be one of the prime sources of scatter and potential bias in optical observables (e.g., richness and weak-lensing signal) of galaxy clusters. In this work, we use the …

us, de, es, br, se, dk, it, gb, fr (code pays fourni par la source)

Disentangling the halo: joint model for measurements of the kinetic Sunyaev–Zeldovich effect and galaxy–galaxy lensing

James Sunseri, Alexandra Amon, Jo Dunkley, Nicholas Battaglia et autres

ABSTRACT We present the first joint analysis of the kinetic Sunyaev–Zeldovich (kSZ) effect with galaxy–galaxy lensing (GGL) for CMASS galaxies in the Baryon Oscillation Spectroscopic Survey. We show these complementary probes can disentangle baryons from dark matter in the outskirts of galactic …

us (code pays fourni par la source)

Third EuCAPT Annual Symposium

Alexandra Amon

Weak Lensing. 0:00:00 Slide 1 0:01:15 Slide 2 0:03:20 Slide 3 0:04:52 Slide 4 0:06:01 Slide 5 0:08:36 Slide 6 0:09:41 Slide 7 0:11:52 Slide 8 0:13:24 Slide 9 0:15:53 Slide 10 0:17:14 Slide 11 0:19:03 Slide 12 0:20:57 Slide 13 0:22:09 …

The Early Career Perspective on the Coming Decade, Astrophysics Career Paths, and the Decadal Survey Process

Emily Moravec, Ian Czekala, Katherine B. Follette, Mehmet Alpasian et autres

We discuss the concerns and ideas that emerged during discussion at the Early Career Focus Session at the National Academies regarding (1) the coming decade and the astrophysics career path, and (2) the decadal survey implementation and dissemination.

Astro2020 APC White Paper: The Early Career Perspective on the Coming Decade, Astrophysics Career Paths, and the Decadal Survey Process

Emily Moravec, Ian Czekala, Zeeshan Ahmed, Mehmet Alpaslan et autres

In response to the need for the Astro2020 Decadal Survey to explicitly engage early career astronomers, the National Academies of Sciences, Engineering, and Medicine hosted the Early Career Astronomer and Astrophysicist Focus Session (ECFS) on October 8-9, 2018 under the auspices of …

us (code pays fourni par la source)