Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Cho, Hyejeon"'
Autor:
Finner, Kyle, Jee, M. James, Cho, Hyejeon, Hyeonghan, Kim, Lee, Wonki, van Weeren, Reinout J., Wittman, David, Yoon, Mijin
We present a multiwavelength analysis of 29 merging galaxy clusters that exhibit radio relics. For each merging system, we perform a weak-lensing analysis on Subaru optical imaging. We generate high-resolution mass maps of the dark matter distributio
Externí odkaz:
http://arxiv.org/abs/2407.02557
Autor:
HyeongHan, Kim, Cho, Hyejeon, Jee, M. James, Wittman, David, Cha, Sangjun, Lee, Wonki, Finner, Kyle, Rajpurohit, Kamlesh, Brüggen, Marcus, Forman, William, Jones, Christine, van Weeren, Reinout, Botteon, Andrea, Lovisari, Lorenzo, Stroe, Andra, Domínguez-Fernández, Paola, O'Sullivan, Ewan, Vrtilek, Jan
Publikováno v:
2024 ApJ 962 100
The galaxy cluster Abell 746 (A746; $z$=0.214), featuring a double radio relic system, two isolated radio relics, a possible radio halo, disturbed V-shaped X-ray emission, and intricate galaxy distributions, is a unique and complex merging system. We
Externí odkaz:
http://arxiv.org/abs/2311.00643
Autor:
Chung, Chul, Yoon, Suk-Jin, Park, Seunghyun, An, Seunghyeon, Son, Junhyuk, Cho, Hyejeon, Lee, Young-Wook
It is well established that the Hubble residuals of type Ia supernovae (SNe Ia) show the luminosity step with respect to their host galaxy stellar masses. This `mass-step' is taken as an additional correction factor for the SN Ia luminosity standardi
Externí odkaz:
http://arxiv.org/abs/2310.06011
Our concordance cosmological model predicts that galaxy clusters grow at the intersection of filaments structuring the cosmic web stretching tens of Mega parsecs. Although this hypothesis has been supported by the baryonic components, no observationa
Externí odkaz:
http://arxiv.org/abs/2310.03073
Autor:
Finner, Kyle, Randall, Scott W., Jee, M. James, Blanton, Elizabeth L., Cho, Hyejeon, Clarke, Tracy E., Giacintucci, Simona, Nulsen, Paul, van Weeren, Reinout
A dissociative merger is formed by the interplay of ram pressure and gravitational forces, which can lead to a spatial displacement of the dark matter and baryonic components of the recently collided subclusters. CIZA J0107.7+5408 is a nearby (z=0.10
Externí odkaz:
http://arxiv.org/abs/2210.12165
We present a multiwavelength study of the double radio relic cluster A1240 at z=0.195. Our Subaru-based weak lensing analysis detects three mass clumps forming a ~4 Mpc filamentary structure elongated in the north-south orientation. The northern ($M_
Externí odkaz:
http://arxiv.org/abs/2109.06879
We present an evolutionary population synthesis model of the surface brightness fluctuation (SBF) for normal and He-enriched simple stellar populations (SSPs). While our SBF model for the normal-He population agrees with other existing models, the He
Externí odkaz:
http://arxiv.org/abs/2009.00625
Autor:
Cho, Hyejeon, Blakeslee, John P., Chies-Santos, Ana L., Jee, M. James, Jensen, Joseph B., Peng, Eric W., Lee, Young-Wook
We present new HST optical and near-infrared (NIR) photometry of the rich globular cluster (GC) system of NGC 4874, the cD galaxy in the core of the Coma cluster (Abell 1656). NGC 4874 was observed with the HST Advanced Camera for Surveys in the F475
Externí odkaz:
http://arxiv.org/abs/1604.01768
Autor:
Jensen, Joseph B., Blakeslee, John P., Gibson, Zachary, Lee, Hyun-chul, Cantiello, Michele, Raimondo, Gabriella, Boyer, Nathan, Cho, Hyejeon
Publikováno v:
Astrophysical Journal 808:91 (2015)
We present new calibrations of the near-infrared surface brightness fluctuation (SBF) distance method for the F110W (J) and F160W (H) bandpasses of the Wide Field Camera 3 Infrared Channel (WFC3/IR) on the Hubble Space Telescope. The calibrations are
Externí odkaz:
http://arxiv.org/abs/1505.00400
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