Job Advert 103

Postdoctoral position at Rome Observatory connected with the H2020 program Enabling Weak Lensing Cosmology

Title: GALAXY SHAPE MEASURES IN EUCLID
DEADLINE for applications June 30th 2019.
Duration: 1+1 years (could be further extended)
Net salary after taxes and pensions plan: 28,000 per year
Start: September 1st 2019 (or later if needed and possible according to the the project timeline)
Advertisement: https://www.oa-roma.inaf.it/blog/assegno-di-ricerca-galaxy-shape-measures-in-euclid/
Details on the application: https://www.oa-roma.inaf.it/wp-content/uploads/2019/06/20190604-Bando-GALAXY-SHAPE-EUCLID-ENG.pdf

Rationale and framework:

ESA’s upcoming space mission Euclid is designed to deliver next-generation constraints on cosmology and dark energy using galaxy clustering and weak gravitational lensing measurements. The latter requires highly accurate estimates of weak lensing galaxy shapes.
Archival multi-filter images obtained with the Hubble Space Telescope (HST) provide an indispensable resource in order to calibrate these shape measurement algorithms to the required accuracy. These data yield high-resolution training images of representative galaxy samples, provide input to weak lensing image simulations, and enable statistical corrections for shape measurement biases induced by spatial galaxy colour gradients.

The National Institute for Astrophysics (INAF, Rome, Italy, http://www.inaf.it/en) invites applications for postdoctoral research positions related to the exploitation of archival HST observations for the Euclid weak lensing shape calibration. The work is in close collaboration with Dr. T. Schrabback at the Argelander Institute for Astronomy (AIfA, University of Bonn, Germany, https://astro.uni-bonn.de/en) and visits there are foreseen.

The position is funded by the Enabling Weak Lensing Cosmology (EWC) project (coordinated by Dr. Thomas Kitching, UCL), that has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 776247. A successful candidate will be expected to become a member of both the Euclid and the EWC consortia, report to the EWC consortium, attend meetings and present results to the team. More information can be found from this website https://weaklensing-cosmology.org.

At present, funding is available for a 12+12  months postdoctoral position at INAF Rome Observatory

The successful candidate is expected to start at the beginning of September 2019 or at a date that could suit both the candidate and the project.

At the AIfA efforts concentrate on obtaining a weak lensing quality reduction of relevant HST data, particularly from the CANDELS fields. This  includes accurate PSF modelling and an investigation how systematic uncertainties propagate into the Euclid weak lensing
calibration. Building up on that work the pot-doc will use the reduced HST data to derive an improved correction for the impact of galaxy colour gradients, which is the primary focus of the activities at INAF.

Candidates should have or be expected to shortly obtain a PhD in astronomy or a closely related subject. A documented working experience in the field of at least three years is considered to be equivalent to the title.  Experience in working with weak lensing galaxy
shape measurements, image simulations, and/or HST data analysis is a plus.

Good communication skills and a good level in spoken and written English are essential.

Applicants should send their application via registered mail or certified electronic mail within the deadline.

Applications (joined into a single pdf file) should include a CV, a list of publications, and a description of the applicant’s past research experience, detailing on how it relates to the goals of the project.

In addition, applicants should arrange for at least two letters of reference to be sent directly to roberto.scaramella (at) inaf.it email address. Oral interviews are foreseen for short-listed candidates.

Review of applications will be done during July, 2019 .

For further information please contact Prof. Dr. Roberto Scaramella (INAF, Rome Observatory, roberto.scaramella (at) inaf.it)