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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
Pages
Gerrit Farren
About me
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Posts
Future Blog Post
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Blog Post number 4
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Blog Post number 3
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Blog Post number 2
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Blog Post number 1
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otherpubs
The Atacama Cosmology Telescope: two-season ACTPol extragalactic point sources and their polarization properties
Published in Monthly Notices of the Royal Astronomical Society, 2019
I contributed flux denisty scale confirmation to this catalog of point sources extracted from data taken by the Atacama Cosmology Telescope.
Download here
Determining the Hubble Constant without the Sound Horizon: Measurements from Galaxy Surveys
Published in Physical Review D, 2021
Among other things I worked on forecasting the ability of improving on the measurement presented here with future observations.
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Determining the Hubble Constant without the Sound Horizon: A 3.6% constraint on the Hubble rate from Galaxy Surveys, CMB Lensing and Supernovae
Published in Physical Review D, 2021
We apply the methodology developed in previous work to data from the Baryon Oscillation Spectroscopic Survey including new measurements of the matter density from Pantheon+.
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portfolio
Portfolio item number 1
Short description of portfolio item number 1
Portfolio item number 2
Short description of portfolio item number 2
publications
Confirming the Calibration of ALMA Using Planck Observations
Published in The Astrophysical Journal Supplement Series, 2021
We aim to transfer Planck’s absolute calibration based on the motional dipole induced by the satellite’s orbit around the solar system barycenter to ALMA. Because Planck and ALMA were not observing at the same time and many of the compact sources used for the comparison are variable we use ACT data to “bridge” the gap between them.
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Cosmology with unWISE and CMB lensing tomography from ACT (in prep.)
We investigate the amplitude of matter density fluctuations unsing CMB lensing reconstruction from the Atacama Cosmology Telescope (ACT) and the unWISE galaxy survey.
Probing ultra-light axion dark matter with the kinetic SZ effect
Published in Physical Review D, 2022
We compute observables of the kinetic Sunyaev-Zeldovich (kSZ) effect in the presence of ultra-light axion dark matter. We show that next generation observations of the kSZ effect have the potential to constrain cosmic axion abundance.
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Determining the Hubble constant without the sound horizon: Perspectives with future galaxy surveys
Published in Physical Review D, 2022
We present a novel method for measuring the Hubble rate from spectroscopic galaxy surveys effectively marginalising over the physical size of the sound horizon. We argue this measurement may be used as a consistency test of a given cosmological model.
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talks
Talk 1 on Relevant Topic in Your Field
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Conference Proceeding talk 3 on Relevant Topic in Your Field
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teaching
Teaching experience 1
Undergraduate course, University 1, Department, 2014
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Teaching experience 2
Workshop, University 1, Department, 2015
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