Welcome to Cosmos


We are a team of talented cosmologists making the Universe looks better

Bio

Observational Cosmologist at the Instituto de Ciencias Fisicas - UNAM (2017 - )

I started my career as a theoretical cosmologist and then slowly moving to statistics, data science and machine learning.

My research focuses on the exploration and analysis of astrophysical and cosmological observations; in the study of Dark energy, Dark Matter and Inflationary models through Bayesian statistics and scientific computation (Machine Learning).

I am co-author of several codes, including the SimpleMC code developed for the BOSS collaboration and initially released at .



Full CV

Current position

  • Titular A (2022), PRIDE C (2023).
  • SNI 2 (2021).
  • Member of the ACMor (2022), SMF (2017), IAC (2006), etc.
  • Member of the LSST (2021) and SDSS (2013) collaborations.

Current Projects

  • 2023. PAPIIT - DGAPA IN117723.
  • 2021. Ciencia de Frontera, FORDECYT-PRONACES.
  • 2021. PAPIIT - DGAPA IA-104221.
  • 2019. Ciencia Basica, SEP - CONACYT A1-S-21925.

Work Experience

  • 2016-2017. Fellowship - Catedrático CONACYT, CINVESTAV.
  • 2013-2016. Postdoctoral Research Associate, Brookhaven National Lab (BNL), U.S. Department of Energy (DoE), USA.

Education

  • Ph.D. Kavli Institute for Cosmology, Cambridge UK.
  • MASt. Centre for Mathematical Sciences, Cambridge UK.
  • M.Sc. Centro de Investigación y de Estudios Avanzados, MX.
  • B.Sc. Universidad Autónoma del Estado de Morelos, MX.
ICF BNL KICC Cambridge Cinvestav UAEM

All Papers

55

Papers JCR

72

Total Papers Including Outreach and Proceedings

10,620

Citations Google-scholar

28

h-index
i10-index: 49

Publications (2024)

--

Cosmological parameter estimation with Genetic Algorithms.

Universe
Ricardo Medel-Esquivel, Isidro Gomez-Vargas, Alejandro A. Morales, Ricardo Garcia-Salcedo, JAV.

Coupled Multi Scalar Field Dark Energy

Phys. Rev. D.
JAV, David Tamayo, Gabriela Garcia, Isidro Gómez, Israel Quiros, Anjan A. Sen

Cosmology on a Gravitational Wave Background.

MNRAS
Tonatiuh Matos, Luis A. Escamilla, Maribel Hernandez, JAV.

ΛsCDM model: A promising scenario for alleviation of cosmological tensions

Ozgur Akarsu, Eleonora Di Valentino, Suresh Kumar, Rafael C. Nunes, JAV, Anita Yadav.

Scalar field emulator via anisotropically deformed vacuum energy

Ozgur Akarsu, Nihan Katirci, Anjan A. Sen, JAV.

ΛsCDM model: A promising scenario for alleviation of cosmological tensions.

Ozgur Akarsu,Eleonora Di Valentino, Suresh Kumar, Rafael C. Nunes, JAV, Anita Yadav.

Interacting Scalar fields: Dark Matter--Early Dark Energy.

Gabriela Garcia-Arroyo, L. Arturo Ureña-López, JAV.

2023

Neural Networks Optimized by Genetic Algorithms in Cosmology

Phys. Rev. D.
Isidro Gómez-Vargas, Joshua Briones Andrade, JAV.

Neural network reconstructions for the Hubble parameter, growth rate and distance modulus

Eur. Phys. J. C
Isidro Gómez-Vargas, JAV, Ricardo Medel Esquivel, Ricardo García-Salcedo.

Model selection applied to non-parametric reconstructions of the Dark Energy

Eur. Phys. J. C
Luis A. Escamilla, JAV.

Analysis of Dark Matter Halo Structure Formation in N-body Simulations with Machine Learning

Phys. Rev. D.
Jazhiel Chacón, Isidro Gómez-Vargas, Ricardo Menchaca Méndez, JAV.

Relaxing cosmological tensions with a sign switching cosmological constant: Improved results

Phys. Rev. D.
Ozgur Akarsu, Suresh Kumar, Emre Ozulker, JAV, Anita Yadav.

Bayesian analysis for rotational curves with l-boson stars as a dark matter component

JCAP
Atalia Navarro-Boullosa, Argelia Bernal, JAV.

Model independent reconstruction of the Interacting Dark Energy Kernel: Binned and Gaussian process

JCAP
Luis A. Escamilla, Ozgur Akarsu, Eleonora Di Valentino, JAV.

2022

Cosmology Intertwined: A Review of the Cosmology Associated with Tensions and Anomalies

J. High En. Astrophys
Elcio Abdalla, et al.

Observational cosmology with Artificial Neural Networks

Universe
Juan de Dios Rojas Olvera, Isidro Gomez-Vargas, JAV.

Classification algorithms applied to structure formation simulations

Astronomy & Computing
Jazhiel Chacón JAV, Erick Almaraz.

Cosmological constraints on the Multi Scalar Field Dark Matter model

Phys. Rev. D.
L.O. Tellez-Tovar, Tonatiuh Matos JAV.

2021

Relaxing cosmological tensions with a sign switching cosmological constant

Phys. Rev. D.
Ozgur Akarsu, Suresh Kumar, Emre Ozulker, JAV.

Simple-graduated dark energy and spatial curvature

Phys. Rev. D.
Giovanni Acquaviva, O. Akarsu, Nihan Katirci, JAV.

Core-Halo Mass Relation in Scalar Field Dark Matter Models and its Consequences

Phys. Rev. D.
Luis E. Padilla, Tanja Rindler, Paul R. Shapiro, Tonatiuh Matos, JAV.

Bayesian model selection on Scalar e-Field Dark Energy

Phys. Rev. D.
JAV, David Tamayo, Anjan A. Sen, Israel Quiros.

Cosmological parameter inference with Bayesian statistics

Universe.
Luis E Padilla, Luis O Tellez, Luis A Escamilla, JAV.

Reconstructing the Universe: Testing the Mutual Consistency with Gaussian Processes

Astron. J.
Ryan E. Keeley, Arman Shafieloo, Gong-Bo Zhao, JAV, Hanwool Koo.

Neural network within a Bayesian inference framework

J.Phys.Conf.Ser.
Isidro Gomez, Ricardo Medel, Ricardo Garcia, JAV.

A simple estimation of the size of the molecules using a pencil lead

The physics Teacher
Ricardo Medel, Isidro Gómez, JAV, Ricardo García.

The inverse problem of a dynamical system solved with genetic algorithms

J.Phys.Conf.Ser.
Ricardo Medel, Isidro Gomez, Ricargo Garcia, JAV.

An introduction to Markov Chain Monte Carlo

BEIO.
Ricardo Medel, Isidro Gómez, JAV, Ricardo García.

2020

Graduated dark energy: observational hints of a spontaneous sign switch in the cosmological constant

Phys. Rev. D
Ozgur Akarsu, John D. Barrow, Luis A. Escamilla, JAV.

A simple supergravity model of inflation constrained with Planck 2018 data

Phys. Rev. D
Gabriel Germán, Juan C Hidalgo, Francisco X. Linares, Ariadna Montiel, JAV.

Anisotropic massive Brans-Dicke gravity extension of standard CDM model

Eur. Phys. J. C
Ozgur Akarsu, Nihan Katirci, Nese Ozdemir, JAV.

Dark Matter with N-Body Numerical Simulations

Rev. Mex. Fís.
Jazhiel Chacón, JAV, Ruslan Gabbasov.

Inflationary Cosmology: From Theory to Observations

Rev. Mex. Fís.
JAV, Luis E. Padilla, Tonatiuh Matos.

2019

Screening Λ with Energy-Momentum Log Gravity

Eur. Phys. J. C
Ozgur Akarsu, John D Barrow, Charles VR Board, N Merve Uzun, JAV.

Fourier series expansion of the dark energy equation of state

MNRAS
D Tamayo, JAV.

Scalar Field Dark Matter Spectator During Inflation: The Effect of Self-interaction

JCAP
Luis E. Padilla, JAV, Tonatiuh Matos, Gabriel Germán.

Una Aplicación de las Redes Neuronales Artificiales en la Cosmología

Rev. Mex. Inteligencia Artificial
Isidro Gómez, Ricardo Medel, Ricardo García, JAV.

Cosmología Observacional con redes Neuronales Artificiales

ISSN 2594-2697, UNAM
JAV, Ricardo Medel, Isidro Gomez.

Astrobiología: origen de la vida en el Planeta Tierra

El Faro - UNAM
Alejandro Prieto de los Monteros, JAV.

Students

Theses


Reseach Topics include: Dark Energy , Dark Matter, Bayesian Statistics, Artificial Neural Networks, Genetic Algorithms .
  • All
  • Posdoc
  • PhD
  • MSc
  • BSc
Isidro

Current

1

Postdoc

4

PhD

3

MSc

6

BSc

3 Social Service

Former

1

Postdoc

3

PhD

3

MSc

5

BSc

16 Social Service

Scholarships - Research Stays

Interested in joining the research group.

Call To Action


Social Service, Beca PAPIIT, Beca Conacyt (Travel), Postdoc.

Events Organized

- 28 -

Cosmo4s. Cosmo-Meeting V.

Tlaquepaque, Guadalajara, MX.

Diciembre 15-18

[28]

VIII Scalar Field Dark Matter Workshop.

Playa del Carmen, Cancún, MX.

Septiembre 26-29

[27]

II Mini Workshop on High Performance Computing.

ICF-UNAM, Morelos.

Agosto 16-18

[26]

Mexican Cosmo Astrostatistics.

Leon, Guanajuato.

Junio 19-25

[25]

Cosmo4s. Cosmo-Meeting IV.

Cuernavaca Morelos.

December 9-12

[24]

Mini Workshop on High Performance Computing.

Universidad Autonoma del Estado de Hidalgo.

November 23-25

[23]

VII Scalar Field Workshop.

Leon Guanajuato.

October 26-27

[22]

Cosmo Meeting III.

Cuernavaca Mor.

November 26-27, 2021

[21]

VI Scalar Field Dark Matter Workshop.

U Guanajuato

October 28-29, 2021

[20]

Mexican Astro Cosmo Statistics School.

U Guanajuato

28 June-2 July, 2021

[19]

Cosmo4s. Cosmo-Meeting II.

ICF-UNAM

14-15 December, 2020

[18]

V Taller de Materia Oscura Escalar.

Zoom

22-23 October, 2020

[17]

Taller de Cosmología, SimpleMC.

Zoom

3-5 June, 2020

[16]

Cosmo-Meeting I.

ICF-UNAM

12-13 December, 2019

[15]

3rd Mexican Astro Cosmo Statistics School.

Leon, Guanajuato

10-14 June, 2019

[14]

VII Taller de Gravitacion y Cosmologia.

ICF-UNAM

27-28 June, 2019

[13]

I Taller de Relatividad Numerica y Agujeros Negros.

ICF-UNAM

25-26 June, 2019

[12]

IV Taller de Materia Oscura Escalar.

Queretaro, Qro.

30-31 May, 2019

[11]

MX Dark Matter.

Rivera Maya

3-5 November, 2018

[10]

Reunion en honor de Tonatiuh Matos.

CINVESTAV

20-21 September, 2018

[9]

VI Taller de Gravitacion y Cosmologia.

ICF-UNAM

2-3 August, 2018

[8]

IV Taller de Metodos Numericos y Estadisticos en Cosmologia.

ICF-UNAM

30-31 July, 1 August, 2018

[7]

Taller Cinvespy.

CINVESTAV

21-22 November, 2017

[6]

Advanced Summer School in Physics.

CINVESTAV

24-28 July, 2017

[5]

XXV Reunion Anual de la DGFM, de la SMF.

CINVESTAV

8-9 June, 2017

[4]

III Taller de Metodos Numericos y Estadisticos.

CINVESTAV

6-7 April, 2017

[3]

II Taller de Metodos Numericos y Estadisticos.

IF-UNAM

24-26 September, 2013

[2]

Mini Taller de CAMB.

ININ

21-22 January, 2011

[1]

References

--

Anthony Lasenby

KICC, Cambridge

Mike Hobson

KICC, Cambridge

Anže Slosar

Brookhaven National Laboratory

Tonatiuh Matos

CINVESTAV

Contact

Instituto de Ciencias Fisicas

Universidad Nacional Autonoma de Mexico

Address

Instituto de Ciencias Fisicas
Universidad Nacional Autonoma de Mexico
Av. Universidad 2001, 62210
Cuernavaca, Morelos

Email

javazquez@icf.unam.mx

Phone

+52 (777) 329-17-77

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