Archive for the OJAp Papers Category

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, The Universe and Stuff with tags , , , , , on May 26, 2023 by telescoper

It’s time to announce yet another new paper at the Open Journal of Astrophysics. This one was published yesterday (25th May).

The latest paper is the 18th paper so far in Volume 6 (2023) and the 83rd in all. With this one we have now published more papers in 2023 than we did in all of last year. With significantly less than half the year gone, and a large number of papers in the pipeline, I think it’s quite likely we will exceed a total of 100 papers by the end of 2023.

The primary classification for this paper is Cosmology and Nongalactic Astrophysics and its title is “The Effect of Splashback on Weak Lensing Mass Estimates of Galaxy Clusters and Groups”. For the uninitiated  “Splashback” of infalling material produces features in the radial density profile of galaxy clusters. This paper discusses the effect of this on cluster masses derived from weak lensing measurements.

The authors, most of whom have multiple affiliations, are: Yuanyuan Zhang (NOIRLab, Tucson, AZ, USA), Susmita Adhikari (IISER, Pune, India), Matteo Costanzi (Univ. Trieste, Italy) and Josh Frieman, Jim Annis & Chihway Chang (Univ. Chicago, IL, USA).

Here is a screen grab of the overlay which includes the  abstract:

 

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper, along with all other astrophysics and cosmology research papers worth reading, on the arXiv here.

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, Open Access, The Universe and Stuff with tags , , , on May 18, 2023 by telescoper

It’s time to announce yet another new paper at the Open Journal of Astrophysics. This one was published yesterday (17th May).

The latest paper is the 17th paper so far in Volume 6 (2023) and the 82nd in all. With this one we have now published as many papers so far in 2023 as we did in all of last year. With significantly less than half the year gone, and a large number of papers in the pipeline, I think it’s quite likely we will exceed a total of 100 papers by the end of 2023. How’s that for cosmic acceleration?

The primary classification for this paper is Instrumentation and Methods for Astrophysics and its title is “Deep-field Metacalibration”. This article describes a technique that reduces the pixel noise in estimators of weak gravitational lensing shear signals by using a deeper imaging survey for calibration.

The authors are Zhuoqi (“Jackie”) Zhang (University of Chicago, IL, USA), Erin Sheldon (Brookhaven National Laboratory, NY, USA), and Matthew Becker (Argonne National Laborary, IL, USA).

Here is a screen grab of the overlay which includes the  abstract:

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper, along with all other astrophysics and cosmology research papers worth reading, on the arXiv here.

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, The Universe and Stuff with tags , , , , on May 16, 2023 by telescoper

It’s time to announce yet another new paper at the Open Journal of Astrophysics. In fact it’s a little overdue, because we published this one on Friday 12th May, but I just got round to posting it on here.

The latest paper is the 16th paper so far in Volume 6 (2023) and the 81st in all. The primary classification for this paper is Instrumentation and Methods for Astrophysics and its title is “Metadetection Weak Lensing for the Vera C. Rubin Observatory“. I added the link to Wikipedia myself for those who might be unfamiliar with the Rubin Observatory.

The authors are Erin Sheldon (Brookhaven National Laboratory, NY, USA), Matthew Becker (Argonne National Laborary, IL, USA), Michael Jarvis (University of Pennsylvania, PA) and Robert Armstrong (Lawrence Livermore National Laboratory, CA) – all in the USA – and the LSST Dark Energy Science Collaboration, who have published a significant number of publications with OJAp. In fact, we’ll have another one in a day or two.

Here is a screen grab of the overlay which includes the  abstract:

 

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper, along with all other astrophysics and cosmology research papers worth reading, on the arXiv here

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, The Universe and Stuff on May 1, 2023 by telescoper

It’s time for the announcement of yet another new paper at the Open Journal of Astrophysics. In fact it’s a little overdue, because we published this one on Friday 28th April but what with the impending holiday weekend, it slipped my mind to post it on here.

The latest paper is the 15th paper so far in Volume 6 (2023) and the 80th in all. This is another one for the folder marked Cosmology and Nongalactic Astrophysics and its title is “JAX-COSMO: An End-to-End Differentiable and GPU Accelerated Cosmology Library”. The software and related  documentation referred to in this paper can be found here.

The lead author of this paper is Jean-Eric Campagne of the Université Paris-Saclay in France, and there are nine co-authors based in France, Germany, USA, UK, China and Switzerland.

Here is a screen grab of the overlay which includes the  abstract:

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, The Universe and Stuff with tags , , , , on April 28, 2023 by telescoper

Time for the announcement of yet another new paper at the Open Journal of Astrophysics. The latest paper is the 14th paper so far in Volume 6 (2023) and the 79th in all. This one is in the folder marked Astrophysics of Galaxies and its title is “Massive Star Formation in Overdense Regions of the Early Universe”. The early Universe aspect does of course imply considerable overlap with cosmology.

The (sole) author is our very own John Regan of the Department of Theoretical Physics at Maynooth University.

Here is a screen grab of the overlay which includes the  abstract:

Here’s a bigger version of the image I chose for the overlay:

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, The Universe and Stuff with tags , , , , , , , on April 25, 2023 by telescoper

It’s time once more to announce a new paper at the Open Journal of Astrophysics. The latest paper is the 13th paper so far in Volume 6 (2023) and the 78th in all. This one is another for the folder marked Cosmology and NonGalactic Astrophysics and its title is “The catalog-to-cosmology framework for weak lensing and galaxy clustering for LSST”.

The lead author is Judit Prat of the University of Chicago (Illinois, USA) and there are 21 co-authors from elsewhere in the USA and in the UK. The paper is written on behalf of the LSST Dark Energy Science Collaboration (LSST DESC), which is the international science collaboration that will make high accuracy measurements of fundamental cosmological parameters using data from the Rubin Observatory Legacy Survey of Space and Time (LSST). The OJAp has published a number of papers involving LSST DESC, and I’m very happy that such an important consortium has chosen to publish with us.

Here is a screen grab of the overlay which includes the  abstract:

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, Open Access, The Universe and Stuff with tags , , , , on April 18, 2023 by telescoper

Back after a short hiatus due to the Easter holidays, it’s time to announce yet another new paper at the Open Journal of Astrophysics. This one was accepted for publication a few weeks ago but the final version only appeared on the arXiv yesterday. Since OJAp is an arXiv-overlay journal, we have to wait for authors to upload the accepted version before we can publish the overlay.

Anyway, the latest paper is the 12th paper so far in Volume 6 (2023) and the 77th in all. This one is in the currently under-populated folder marked Solar and Stellar Astrophysics and its title is “Predicting Stellar Mass Accretion: An Optimized Echo State Network Approach in Time Series Modeling”.

The authors are: Gianfranco Bino, Shantanu Basu & Ramit Dey (all at the University of Western Ontario, Canada), Sayantan Auddy (Jet Propulsion Laboratory, Pasadena, USA), Lyle Muller (University of Western Ontario, Canada) and Eduardo I. Vorobyov (University of Vienna, Austria & Southern Federal University, Russia).

Here is a screen grab of the overlay which includes the  abstract:

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

Two New Publications at the Open Journal of Astrophysics

Posted in OJAp Papers, The Universe and Stuff with tags , , , , , , , , on March 26, 2023 by telescoper

I just realized that I forgot to advertise on here a couple of recent publications at the Open Journal of Astrophysics – the papers are coming in at quite a rate now – so I’ll catch up with them both in one post.

The first paper of the two is the 10th paper in Volume 6 (2023) and the 75th in all; it was published on 16th March 2023. This one is  in the folder marked Instrumentation and Methods for Astrophysics. The title is “From BeyondPlanck to Cosmoglobe: Open Science, Reproducibility, and Data Longevity” and it is a discussion of the importance of reproducibility and Open Science in CMB science including measures toward facilitating easy code and data distribution, community-based code documentation, user-friendly compilation procedures, etc.  You can find out more about the BeyondPlanck collaboration here and about Cosmoglobe here.

The first author is S. Gerakakis and there are 42 authors in all. This is too many to list individually here but they come from Greece, Norway, Finland, Germany, Italy, and the USA.

Here is a screen grab of the overlay which includes the  abstract:

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

The second paper is the 11th paper in Volume 6 (2023) as well as the 76th in all; this one was published last Thursday (23rd March). This is another for the folder marked Cosmology and Nongalactic Astrophysics. The title is “GLASS: Generator for Large Scale Structure” and the paper is about a new code for the simulation of cosmological observables obtainable from galaxy surveys in a realistic yet computationally inexpensive manner. The code can be downloaded here. This is an interesting approach that contrasts with the “brute force” of full numerical simulations like those I discussed a few days ago.

The authors are Nicolas Tessore (University College London), Arthur Loureiro (UCL, Edinburgh and Imperial College), Benjamin Joachimi (UCL), Maximilian von Wiestersheim-Kramsta (UCL) and Niall Jeffrey (UCL).

Here is a screen grab of the overlay which includes the  abstract:

 

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, Open Access, The Universe and Stuff with tags , , , , on March 10, 2023 by telescoper

It’s time to announce yet another new paper at the Open Journal of Astrophysics.

The latest paper is the 9th paper in Volume 6 (2023) and the 74th in all. This one is another one for the folder marked Instrumentation and Methods for Astrophysics. The title is “panco2: a Python library to measure intracluster medium pressure profiles from Sunyaev-Zeldovich observations”. The code described in the paper The Python code is available on GitHub and there isextensive technical documentation to complement this paper.

The authors are Florian Kéruzoré (Argonne National Laboratory, USA, and the University of University of Grenoble, France), Frédéric Mayet, Emmanuel Artis, Juan-Francisco Macías-Pérez, Miren Muñoz-Echeverría and Laurence Perotto (all of the University of Grenoble, France) and Florian Ruppin (of the University of Lyon, also in France).

Here is a screen grab of the overlay which includes the  abstract:

 

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

New Publication at the Open Journal of Astrophysics

Posted in OJAp Papers, Open Access, The Universe and Stuff with tags , , , , on February 20, 2023 by telescoper

It’s time to announce yet another new paper at the Open Journal of Astrophysics Open Journal of Astrophysics. This was published last week (on 15th February 2023) but there was a slight delay in getting the DOI activated and all the metadata registered so I waited until that was done before announcing the paper here.

The latest paper is the 8th paper in Volume 6 (2023) as well as the 73rd in all. This one is another one for the folder marked Cosmology and Nongalactic Astrophysics. The title is “The N5K Challenge: Non-Limber Integration for LSST Cosmology”. The paper is about ways of avoiding using the ubiquitous Limber Approximation which, I discovered this morning, is now 70 years old, Nelson Limber’s original paper on the subject having been published in January 1953.

The lead author of the paper is Danielle Leonard of Newcastle University and there are ten co-authors from around the world in countries including UK, USA, Brazil, Germany, Spain, Switzerland and France on behalf of the LSST Dark Energy Science Collaboration.

Here is a screen grab of the overlay which includes the  abstract:

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.