Zobrazeno 1 - 10
of 3 509
pro vyhledávání: '"Efstathiou P"'
In this paper we explore the properties of the z=6.853 obscured hyperluminous quasar COS-87259, discovered in the Cosmological Evolution Survey (COSMOS) field, with our recently developed Bayesian spectral energy distribution (SED) fitting code SMART
Externí odkaz:
http://arxiv.org/abs/2410.08834
Autor:
Oh, Yujin, Park, Sangjoon, Li, Xiang, Yi, Wang, Paly, Jonathan, Efstathiou, Jason, Chan, Annie, Kim, Jun Won, Byun, Hwa Kyung, Lee, Ik Jae, Cho, Jaeho, Wee, Chan Woo, Shu, Peng, Wang, Peilong, Yu, Nathan, Holmes, Jason, Ye, Jong Chul, Li, Quanzheng, Liu, Wei, Koom, Woong Sub, Kim, Jin Sung, Kim, Kyungsang
Clinical experts employ diverse philosophies and strategies in patient care, influenced by regional patient populations. However, existing medical artificial intelligence (AI) models are often trained on data distributions that disproportionately ref
Externí odkaz:
http://arxiv.org/abs/2410.00046
Defining script types and establishing classification criteria for medieval handwriting is a central aspect of palaeographical analysis. However, existing typologies often encounter methodological challenges, such as descriptive limitations and subje
Externí odkaz:
http://arxiv.org/abs/2408.11150
Autor:
Efstathiou, George
Recent results from the Dark Energy Spectroscopic Instrument (DESI) collaboration have been interpreted as evidence for evolving dark energy. However, this interpretation is strongly dependent on which Type Ia supernova (SN) sample is combined with D
Externí odkaz:
http://arxiv.org/abs/2408.07175
Autor:
Efstathiou, George
Observations of the cosmic microwave backgroundradiation are described to remarkable accuracy by the six-parameterLambda CDM cosmology. However, the key ingredients of this model, namely dark matter, dark energy and cosmic inflation are not understoo
Externí odkaz:
http://arxiv.org/abs/2406.12106
In this paper we present the publicly available open-source spectral energy distribution (SED) fitting code SMART (Spectral energy distributions Markov chain Analysis with Radiative Transfer models). Implementing a Bayesian Markov chain Monte Carlo (
Externí odkaz:
http://arxiv.org/abs/2405.18130
Autor:
Rissaki, Agapi, Pavlou, Orestis, Fotakis, Dimitris, Lesta, Vicky Papadopoulou, Efstathiou, Andreas
Publikováno v:
Astronomy and Computing 47 (2024) 100823
The mid-infrared spectra of galaxies are rich in features such as the Polycyclic Aromatic Hydrocarbon (PAH) and silicate dust features which give valuable information about the physics of galaxies and their evolution. For example they can provide inf
Externí odkaz:
http://arxiv.org/abs/2405.02153
Analyses of cosmic shear typically condense weak lensing information over a range of scales to a single cosmological parameter, $S_8$. This paper presents a method to extract more information from Stage-IV cosmic shear measurements by directly recons
Externí odkaz:
http://arxiv.org/abs/2404.18240
Autor:
García-Bernete, I., Pereira-Santaella, M., González-Alfonso, E., Rigopoulou, D., Efstathiou, A., Donnan, F. R., Thatte, N.
We analyze JWST NIRSpec$+$MIRI/MRS observations of the infrared (IR) gas-phase molecular bands of the most enshrouded source (D1) within the interacting system and luminous IR galaxy II Zw 096. We report the detection of rovibrational lines of H$_2$O
Externí odkaz:
http://arxiv.org/abs/2401.02763
Axion-like early dark energy (EDE) as an extension to $\Lambda$CDM has been proposed as a possible solution to the 'Hubble tension'. We revisit this model using a new cosmic microwave background (CMB) temperature and polarization likelihood construct
Externí odkaz:
http://arxiv.org/abs/2311.00524