publications

publications by categories in reversed chronological order. generated by jekyll-scholar.

2025

  1. Graphit: Efficient node classification on text-attributed graphs with prompt optimized llms
    Shima Khoshraftar, Niaz Abedini, and Amir Hajian
    In Companion Proceedings of the ACM on Web Conference 2025, 2025

2024

  1. Longfin: A multimodal document understanding model for long financial domain documents
    Ahmed Masry and Amir Hajian
    arXiv preprint arXiv:2401.15050, 2024

2018

  1. Constrained Bayesian optimization for problems with piece-wise smooth constraints
    Aliakbar Gorji Daronkolaei, Amir Hajian, and Tonya Custis
    In Canadian Conference on Artificial Intelligence, 2018

2015

  1. The Atacama Cosmology Telescope: lensing of CMB temperature and polarization derived from cosmic infrared background cross-correlation
    Alexander van Engelen, Blake D Sherwin, Neelima Sehgal, and 8 more authors
    The Astrophysical Journal, 2015
  2. Co-evolution of black hole growth and star formation from a cross-correlation analysis between quasars and the cosmic infrared background
    Lingyu Wang, Marco Viero, Nicholas P Ross, and 8 more authors
    Monthly Notices of the Royal Astronomical Society, 2015
  3. First measurement of the cross-correlation of CMB lensing and galaxy lensing
    Nick Hand, Alexie Leauthaud, Sudeep Das, and 8 more authors
    Physical Review D, 2015
  4. Evidence of lensing of the cosmic microwave background by dark matter halos
    Mathew Madhavacheril, Neelima Sehgal, Rupert Allison, and 8 more authors
    Physical review letters, 2015
  5. SALT spectroscopic observations of galaxy clusters detected by ACT and a type II quasar hosted by a brightest cluster galaxy
    Brian Kirk, Matt Hilton, Catherine Cress, and 8 more authors
    Monthly Notices of the Royal Astronomical Society, 2015

2014

  1. The Atacama Cosmology Telescope: A Measurement of the Thermal Sunyaev-Zel’dovich One-Point PDF
    J Colin Hill, Blake D Sherwin, Kendrick M Smith, and 8 more authors
    arXiv preprint arXiv:1411.8004, 2014
  2. The Atacama Cosmology Telescope: cross correlation with Planck maps
    Thibaut Louis, Graeme E Addison, Matthew Hasselfield, and 8 more authors
    Journal of Cosmology and Astroparticle Physics, 2014
  3. The Atacama cosmology telescope: CMB polarization at 200< ℓ< 9000
    Sigurd Naess, Matthew Hasselfield, Jeff McMahon, and 8 more authors
    Journal of Cosmology and Astroparticle Physics, 2014
  4. Precision epoch of reionization studies with next-generation CMB experiments
    Erminia Calabrese, Renée Hložek, Nick Battaglia, and 8 more authors
    Journal of Cosmology and Astroparticle Physics, 2014
  5. Testing inflation with large scale structure: connecting hopes with reality
    Marcelo Alvarez, Tobias Baldauf, J Richard Bond, and 8 more authors
    arXiv preprint arXiv:1412.4671, 2014
  6. A measurement of the millimetre emission and the Sunyaev–Zel’dovich effect associated with low-frequency radio sources
    Megan B Gralla, Devin Crichton, Tobias A Marriage, and 8 more authors
    Monthly Notices of the Royal Astronomical Society, 2014
  7. The Atacama Cosmology Telescope: dusty star-forming galaxies and active galactic nuclei in the Southern survey
    Danica Marsden, Megan Gralla, Tobias A Marriage, and 8 more authors
    Monthly Notices of the Royal Astronomical Society, 2014
  8. The Atacama Cosmology Telescope: temperature and gravitational lensing power spectrum measurements from three seasons of data
    Sudeep Das, Thibaut Louis, Michael R Nolta, and 8 more authors
    Journal of Cosmology and Astroparticle Physics, 2014

2013

  1. The Atacama Cosmology Telescope: Cosmological parameters from three seasons of data
    Jonathan L Sievers, Renée A Hlozek, Michael R Nolta, and 8 more authors
    Journal of Cosmology and Astroparticle Physics, 2013
  2. THE ATACAMA COSMOLOGY TELESCOPE: DYNAMICAL MASSES AND SCALING RELATIONS FOR A SAMPLE OF MASSIVE SUNYAEV–ZEL’DOVICH EFFECT SELECTED GALAXY CLUSTERS
    Cristobal Sifon, Felipe Menanteau, Matthew Hasselfield, and 8 more authors
    The Astrophysical Journal, 2013
  3. Cosmological parameters from pre-planck cosmic microwave background measurements
    Erminia Calabrese, Renée A Hlozek, Nick Battaglia, and 8 more authors
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2013
  4. The Atacama Cosmology Telescope: beam measurements and the microwave brightness temperatures of Uranus and Saturn
    Matthew Hasselfield, Kavilan Moodley, J Richard Bond, and 8 more authors
    The Astrophysical Journal Supplement Series, 2013
  5. THE ATACAMA COSMOLOGY TELESCOPE: RELATION BETWEEN GALAXY CLUSTER OPTICAL RICHNESS AND SUNYAEV–ZEL’DOVICH EFFECT
    Neelima Sehgal, Graeme Addison, Nick Battaglia, and 8 more authors
    The Astrophysical Journal, 2013
  6. Measuring the thermal Sunyaev-Zel’dovich effect through the cross correlation of Planck and WMAP maps with ROSAT galaxy cluster catalogs
    Amir Hajian, Nicholas Battaglia, David N Spergel, and 3 more authors
    Journal of Cosmology and Astroparticle Physics, 2013
  7. The Atacama Cosmology Telescope: Sunyaev-Zel’dovich selected galaxy clusters at 148 GHz from three seasons of data
    Matthew Hasselfield, Matt Hilton, Tobias A Marriage, and 8 more authors
    Journal of Cosmology and Astroparticle Physics, 2013
  8. The atacama cosmology telescope: Data characterization and mapmaking
    Rolando Dünner, Matthew Hasselfield, Tobias A Marriage, and 8 more authors
    The Astrophysical Journal, 2013
  9. Subaru weak lensing measurement of az= 0.81 cluster discovered by the Atacama Cosmology Telescope Survey
    Hironao Miyatake, Atsushi J Nishizawa, Masahiro Takada, and 8 more authors
    Monthly Notices of the Royal Astronomical Society, 2013
  10. THE ATACAMA COSMOLOGY TELESCOPE: PHYSICAL PROPERTIES OF SUNYAEV–ZEL’DOVICH EFFECT CLUSTERS ON THE CELESTIAL EQUATOR
    Felipe Menanteau, Cristobal Sifon, L Felipe Barrientos, and 8 more authors
    The Astrophysical Journal, 2013
  11. The Atacama Cosmology Telescope: the stellar content of galaxy clusters selected using the Sunyaev–Zel’dovich effect
    Matt Hilton, Matthew Hasselfield, Cristóbal Sifón, and 8 more authors
    Monthly Notices of the Royal Astronomical Society, 2013
  12. Wollack, Yue Zhao, and Caroline Zunckel
    Jonathan L Sievers, Renée A Hlozek, Michael R Nolta, and 8 more authors
    The Atacama Cosmology Telescope: cosmological parameters from three seasons of data. jcap, 2013
  13. An optimal and model-independent measurement of the intracluster pressure profile–I. Methodology and first applications
    Siavash Aslanbeigi, Guilhem Lavaux, Amir Hajian, and 1 more author
    Monthly Notices of the Royal Astronomical Society, 2013
  14. A Measurement of the Millimeter Emission and the Sunyaev-zel’dovich Effect Associated with Low-frequency Radio Sources
    Michael B Zemcov, Tobias A Marriage, Nick Battaglia, and 8 more authors
    2013
  15. A high-significance measurement of correlation between unresolved IRAS sources and optically-selected galaxy clusters
    Adam D Hincks, Amir Hajian, and Graeme E Addison
    Journal of Cosmology and Astroparticle Physics, 2013

2012

  1. Correlations in the (Sub) millimeter Background from ACT\times BLAST
    Amir Hajian, Marco P Viero, Graeme Addison, and 8 more authors
    The Astrophysical Journal, 2012
  2. One thousand and one clusters: Measuring the bulk flow with the planck esz and x-ray-selected galaxy cluster catalogs
    Krishnan Mody and Amir Hajian
    The Astrophysical Journal, 2012
  3. Power-law template for infrared point-source clustering
    Graeme E Addison, Joanna Dunkley, Amir Hajian, and 8 more authors
    The Astrophysical Journal, 2012
  4. THE ATACAMA COSMOLOGY TELESCOPE: HIGH-RESOLUTION SUNYAEV–ZEL’DOVICH ARRAY OBSERVATIONS OF ACT SZE-SELECTED CLUSTERS FROM THE EQUATORIAL STRIP
    Erik D Reese, Tony Mroczkowski, Felipe Menanteau, and 8 more authors
    The Astrophysical Journal, 2012
  5. THE ATACAMA COSMOLOGY TELESCOPE: ACT-CL J0102- 4915 “EL GORDO,” A MASSIVE MERGING CLUSTER AT REDSHIFT 0.87
    Felipe Menanteau, John P Hughes, Cristóbal Sifón, and 8 more authors
    The Astrophysical Journal, 2012
  6. The Atacama Cosmology Telescope: a measurement of the primordial power spectrum
    Renee Hlozek, Joanna Dunkley, Graeme Addison, and 8 more authors
    The Astrophysical Journal, 2012
  7. Atacama Cosmology Telescope: A measurement of the thermal Sunyaev-Zel’dovich effect format?> using the skewness of the CMB temperature distribution
    Michael J Wilson, Blake D Sherwin, J Colin Hill, and 8 more authors
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2012
  8. Evidence of galaxy cluster motions with the kinematic Sunyaev-Zel’dovich effect
    Nick Hand, Graeme E Addison, Eric Aubourg, and 8 more authors
    Physical Review Letters, 2012
  9. The Atacama Cosmology Telescope: Cross-correlation of cosmic microwave format?> background lensing and quasars
    Blake D Sherwin, Sudeep Das, Amir Hajian, and 8 more authors
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2012

2011

  1. The Atacama Cosmology telescope: extragalactic sources at 148 GHz in the 2008 survey
    Tobias A Marriage, Jean Baptiste Juin, Yen-Ting Lin, and 8 more authors
    The Astrophysical Journal, 2011
  2. Detection of the Power Spectrum of Cosmic Microwave Background Lensing format?> by the Atacama Cosmology Telescope
    Sudeep Das, Blake D Sherwin, Paula Aguirre, and 8 more authors
    Physical Review Letters, 2011
  3. THE ATACAMA COSMOLOGY TELESCOPE: DETECTION OF SUNYAEV–ZEL’DOVICH DECREMENT IN GROUPS AND CLUSTERS ASSOCIATED WITH LUMINOUS RED GALAXIES
    Nick Hand, John W Appel, Nick Battaglia, and 8 more authors
    The Astrophysical Journal, 2011
  4. The Atacama cosmology telescope: calibration with the Wilkinson microwave anisotropy probe using cross-correlations
    Amir Hajian, Viviana Acquaviva, Peter AR Ade, and 8 more authors
    The Astrophysical Journal, 2011
  5. THE ATACAMA COSMOLOGY TELESCOPE: SUNYAEV–ZEL’DOVICH-SELECTED GALAXY CLUSTERS AT 148 GHz IN THE 2008 SURVEY
    Tobias A Marriage, Viviana Acquaviva, Peter AR Ade, and 8 more authors
    The Astrophysical Journal, 2011
  6. Are there echoes from the pre-big-bang universe? A search for low-variance circles in the cosmic microwave background sky
    Amir Hajian
    The Astrophysical Journal, 2011
  7. The Atacama Cosmology Telescope: a measurement of the cosmic microwave background power spectrum at 148 and 218 GHz from the 2008 southern survey
    Sudeep Das, Tobias A Marriage, Peter AR Ade, and 8 more authors
    The Astrophysical Journal, 2011
  8. Evidence for Dark Energy from the Cosmic Microwave Background Alone Using format?> the Atacama Cosmology Telescope Lensing Measurements
    Blake D Sherwin, Joanna Dunkley, Sudeep Das, and 8 more authors
    Physical review letters, 2011
  9. THE ATACAMA COSMOLOGY TELESCOPE: COSMOLOGY FROM GALAXY CLUSTERS DETECTED VIA THE SUNYAEV–ZEL’DOVICH EFFECT
    Neelima Sehgal, Hy Trac, Viviana Acquaviva, and 8 more authors
    The Astrophysical Journal, 2011
  10. Statistical isotropy of the cosmic microwave background
    Amir Hajian and Tarun Souradeep
    2011
  11. CORRELATIONS IN THE (SUB) MILLIMETER BACKGROUND FROM ACT Multiplication-Sign BLAST
    Amir Hajian, Nick Battaglia, J Richard Bond, and 8 more authors
    Astrophysical Journal, 2011

2010

  1. Bipolar Harmonic encoding of CMB correlation patterns
    Nidhi Joshi, Sanjay Jhingan, Tarun Souradeep, and 1 more author
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2010
  2. The Atacama Cosmology Telescope: physical properties and purity of a galaxy cluster sample selected via the Sunyaev–Zel’dovich effect
    Felipe Menanteau, Jorge González, Jean-Baptiste Juin, and 8 more authors
    The Astrophysical Journal, 2010
  3. The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectrum at 148 AND 218 GHz from the 2008 Southern Survey
    L Felipe Barrientos, J Richard Bond, John W Appel, and 8 more authors
    2010
  4. The Atacama Cosmology Telescope: Power Spectrum Methods
    Amir Hajian, Atacama Cosmology Telescope Team, and others
    In American Astronomical Society Meeting Abstracts# 215, 2010
  5. The Herschel-SPIRE Legacy Survey (HSLS): the scientific goals of a shallow and wide submillimeter imaging survey with SPIRE
    Asantha Cooray, Steve Eales, Scott Chapman, and 8 more authors
    arXiv preprint arXiv:1007.3519, 2010
  6. The Atacama Cosmology Telescope: Detection or Sunyaev-Zel’Dovich Decrement in Groups and Clusters Associated with Luminous Red Galaxies
    Joseph W Fowler, Matthew Hasselfield, Nick Hand, and 8 more authors
    2010

2009

  1. Efficient power spectrum estimation for high resolution CMB maps
    Sudeep Das, Amir Hajian, and David N Spergel
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2009

2008

  1. Next generation redshift surveys and the origin of cosmic acceleration
    Viviana Acquaviva, Amir Hajian, David N Spergel, and 1 more author
    arXiv preprint arXiv:0803.2236, 2008

2007

  1. The kinetic Sunyaev-Zel’dovich effect due to the electrons of our galaxy
    Amir Hajian, Carlos Hernández-Monteagudo, Raul Jimenez, and 2 more authors
    The Astrophysical Journal, 2007
  2. Analysis of the apparent lack of power in the cosmic microwave background anisotropy at large angular scales
    Amir Hajian
    arXiv preprint astro-ph/0702723, 2007
  3. Unveiling hidden patterns in CMB anisotropy maps
    Tuhin Ghosh, Amir Hajian, and Tarun Souradeep
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2007
  4. Efficient cosmological parameter estimation with Hamiltonian Monte Carlo technique
    Amir Hajian
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2007

2006

  1. Measuring statistical isotropy of CMB anisotropy
    Tarun Souradeep, Amir Hajian, and Soumen Basak
    New Astronomy Reviews, 2006
  2. Testing global isotropy of three-year Wilkinson Microwave Anisotropy Probe (WMAP) data: Temperature analysis
    Amir Hajian and Tarun Souradeep
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2006
  3. Statistical isotropy of CMB polarization maps
    Soumen Basak, Amir Hajian, and Tarun Souradeep
    Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2006
  4. Cosmology with CMB anisotropy
    Amir Hajian
    Ph. D. Thesis, 2006
  5. Measuring statistical isotropy of CMB anisotropy
    Soumen Basak, Amir Hajian, and Tarun Souradeep
    2006

2005

  1. Statistical isotropy of the wilkinson microwave anisotropy probe data: a bipolar power spectrum analysis
    Amir Hajian, Tarun Souradeep, and Neil Cornish
    The Astrophysical Journal Letters, 2005
  2. The Cosmic microwave background bipolar power spectrum: Basic formalism and applications (arXiv: astro-ph/0501001) Go to reference in article Preprint
    Hajian Amir and Souradeep Tarun
    2005
  3. Statistical isotropy of CMB anisotropy from WMAP
    Tarun Souradeep and Amir Hajian
    arXiv preprint astro-ph/0502248, 2005

2004

  1. Statistical isotropy of the cosmic microwave background
    Tarun Souradeep and Amir Hajian
    Pramana, 2004
  2. The Cosmic microwave background bipolar power spectrum: Basic formalism and applications
    Amir Hajian and Tarun Souradeep
    arXiv preprint astro-ph/0501001, 2004
  3. AMIR HAJIAN AND TARUN SOURADEEP
    NEIL CORNISH
    arXiv preprint astro-ph/0406354, 2004

2003

  1. Statistical isotropy of CMB and cosmic topology
    Amir Hajian and Tarun Souradeep
    arXiv preprint astro-ph/0301590, 2003
  2. Inhomogeneities in the microwave background radiation interpreted within the framework of the quasi-steady state cosmology
    Jayant V Narlikar, Ram Gopal Vishwakarma, Amir Hajian, and 3 more authors
    The Astrophysical Journal, 2003
  3. Measuring the statistical isotropy of the cosmic microwave background anisotropy
    Amir Hajian and Tarun Souradeep
    The Astrophysical Journal Letters, 2003

  1. COSMIC TOPOLOGY: HOW BIG IS THE UNIVERSE?
    Amelia L Yzaguirre and Amir Hajian