Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Ko, Jongwan"'
We explore the formation of the intragroup light (IGL) and intracluster light (ICL), representing diffuse lights within groups and clusters, since $z=1.5$. For this, we perform multi-resolution cosmological N-body simulations using the ``galaxy repla
Externí odkaz:
http://arxiv.org/abs/2405.08061
Autor:
Kim, Hyowon, Smith, Rory, Ko, Jongwan, Shinn, Jong-Ho, Chun, Kyungwon, Shin, Jihye, Yoo, Jaewon
During cluster assembly, a cluster's virialization process leaves behind signatures that can provide information on its dynamical state. However, no clear consensus yet exists on the best way to achieve this. Therefore, we attempt to derive improved
Externí odkaz:
http://arxiv.org/abs/2405.06245
To enhance our understanding of the impact of galaxy mergers on the kinematics of early-type galaxies (ETGs), we examine differences in specific stellar angular momentum within the half-light radius ($\lambda_{R_e}$) among ETGs with different types o
Externí odkaz:
http://arxiv.org/abs/2404.03459
Autor:
Yoo, Jaewon, Park, Changbom, Sabiu, Cristiano G., Singh, Ankit, Ko, Jongwan, Lee, Jaehyun, Pichon, Christophe, Jee, M. James, Gibson, Brad K., Snaith, Owain, Kim, Juhan, Shin, Jihye, Kim, Yonghwi, Kim, Hyowon
One intriguing approach for studying the dynamical evolution of galaxy clusters is to compare the spatial distributions among various components, such as dark matter, member galaxies, gas, and intracluster light (ICL). Utilizing the recently introduc
Externí odkaz:
http://arxiv.org/abs/2402.17958
We study the mass-size relation of quiescent galaxies across various environments, with a particular focus on its environmental dependence at the low-mass part of $\log(M_\mathrm{star}/M_{\odot})\lesssim10.0$. Our sample consists of 13,667 quiescent
Externí odkaz:
http://arxiv.org/abs/2310.07498
Autor:
Smith, Rory, Hwang, Ho Seong, Kraljic, Katarina, Calderon-Castillo, Paula, Jackson, Thomas M., Pasquali, Anna, Shin, Jihye, Ko, Jongwan, Yoo, Jaewon, Kim, Hyowon, Kim, Jaewoo
Using a sample of $>200$ clusters, each with typically $100-200$ spectroscopically confirmed cluster members, we search for a signal of alignment between the Position Angle (PA) of the Brightest Cluster Galaxy (BCG) and the distribution of cluster me
Externí odkaz:
http://arxiv.org/abs/2308.08622
Autor:
Byun, Woowon, Kim, Minjin, Sheen, Yun-Kyeong, Lee, Dongseob, Ho, Luis C., Ko, Jongwan, Seon, Kwang-Il, Shim, Hyunjin, Kim, Dohyeong, Kim, Yongjung, Lee, Joon Hyeop, Jeong, Hyunjin, Woo, Jong-Hak, Jeong, Woong-Seob, Park, Byeong-Gon, Kim, Sang Chul, Lee, Yongseok, Cha, Sang-Mok, Song, Hyunmi, Son, Donghoon, Yang, Yujin
We search for quasi-stellar objects (QSOs) in a wide area of the south ecliptic pole (SEP) field, which has been and will continue to be intensively explored through various space missions. For this purpose, we obtain deep broadband optical images of
Externí odkaz:
http://arxiv.org/abs/2307.15307
We study the impact of galaxy mergers on stellar population profiles/gradients of early-type galaxies (ETGs) using ETGs at $z<0.055$ in the Stripe 82 region of the Sloan Digital Sky Survey and MaNGA integral field unit spectroscopic data. Tidal featu
Externí odkaz:
http://arxiv.org/abs/2303.00559
We investigate the formation channels of the intracluster light (ICL) and the brightest cluster galaxy (BCG) in clusters at $z=0$. For this, we perform multi-resolution cosmological N-body simulations using the "Galaxy Replacement Technique" (GRT). W
Externí odkaz:
http://arxiv.org/abs/2212.02510
Autor:
Byun, Woowon, Ko, Jongwan, Kim, Yunjong, Seon, Kwang-Il, Chang, Seunghyuk, Kim, Dohoon, Choi, Changsu, Chun, Sang-Hyun, Jeon, Young-Beom, Kim, Jae-Woo, Lee, Chung-Uk, Lee, Yongseok, Park, Hong Soo, Sung, Eon-Chang, Yoo, Jaewon, Lee, Gayoung, Lee, Hyoungkwon
In a $\Lambda$CDM universe, most galaxies evolve by mergers and accretions, leaving faint and/or diffuse structures, such as tidal streams and stellar halos. Although these structures are a good indicator of galaxies' recent mass assembly history, th
Externí odkaz:
http://arxiv.org/abs/2207.14553