Zobrazeno 1 - 10
of 7 530
pro vyhledávání: '"A. Bregman"'
CO-CHANGES II: spatially resolved IRAM 30M CO line observations of 23 nearby edge-on spiral galaxies
Autor:
Jiang, Yan, Li, Jiang-Tao, Tan, Qing-Hua, Ji, Li, Bregman, Joel N., Wang, Q. Daniel, Wang, Jian-Fa, Lu, Li-Yuan, Jiang, Xue-Jian
Molecular gas, as the fuel for star formation, and its relationship with atomic gas are crucial for understanding how galaxies regulate their star forming (SF) activities. We conducted IRAM 30m observations of 23 nearby spiral galaxies from the CHANG
Externí odkaz:
http://arxiv.org/abs/2412.09855
Autor:
Maragkoudakis, Alexandros, Boersma, Christiaan, Temi, Pasquale, Bregman, Jesse D., Allamandola, Louis J., Esposito, Vincent, Ricca, Alessandra, Peeters, Els
We have conducted a sensitivity analysis on the mid-infrared spectral decomposition of galaxies and the modeling of the PAH emission spectrum with the NASA Ames PAH Infrared Spectroscopic Database (PAHdb) to assess the variance on the average galaxy
Externí odkaz:
http://arxiv.org/abs/2412.01875
Motivated by the question of whether braid groups are CAT(0), we investigate the CAT(0) behavior of fundamental groups of plane curve complements and certain universal families. If $C$ is the branch locus of a generic projection of a smooth, complete
Externí odkaz:
http://arxiv.org/abs/2411.18067
Autor:
Li, Jiang-Tao, Yu, Xiaodi, Mao, Huiyang, Chen, Hanxiao, Yang, Tiancheng, Qu, Zhijie, Bian, Fuyan, Bregman, Joel N., Cai, Zheng, Fan, Xiaohui, Fang, Taotao, Ji, Li, Ji, Zhiyuan, Johnson, Sean D., Li, Guoliang, Liu, Weizhe, Song, Ying-Yi, Wang, Feige, Wang, Tao, Wang, Xin, Williams, Christina, Xu, Mingxuan, Yang, Jinyi, Yang, Yang, Zheng, Xianzhong
The He II reionization epoch is expected to take place at $z\sim3-5$. In this stage, the helium and metals in the inter-galactic medium (IGM) are further ionized with additional contributions from harder non-stellar sources, and some large-scale grav
Externí odkaz:
http://arxiv.org/abs/2411.05396
Autor:
Lu, Li-Yuan, Li, Jiang-Tao, Vargas, Carlos J., Fang, Taotao, Benjamin, Robert A., Bregman, Joel N., Dettmar, Ralf-Jürgen, English, Jayanne, Heald, George H., Jiang, Yan, Wang, Q. Daniel, Yang, Yang
The kinematic information of the extraplanar diffuse ionized gas (eDIG) around galaxies provides clues to the origin of the gas. The eDIG-CHANGES project studies the physical and kinematic properties of the eDIG around the CHANG-ES sample of nearby e
Externí odkaz:
http://arxiv.org/abs/2410.02347
Autor:
Boersma, Christiaan, Bregman, Jesse D., Allamandola, Louis J., Temi, Pasquale, Maragkoudakis, Alexandros
Spitzer 'hidden' observations of the background are used to construct a catalog of 4,090 spectra and examine the signature of polycyclic aromatic hydrocarbon (PAH) molecules and their connection to extinction by dust. A strong positive correlation is
Externí odkaz:
http://arxiv.org/abs/2409.12324
Autor:
Blackwell, Anne E., Bregman, Joel N.
An Early Enrichment Population (EEP) has been theorized to produce the observed intracluster medium (ICM) metallicity of galaxy clusters. This population likely existed at high redshifts (z$\sim$10), relics of which we posit exist today as dwarf gala
Externí odkaz:
http://arxiv.org/abs/2408.02781
Autor:
Bregman, Corey, Incerti-Medici, Merlin
We show that cubulated hyperbolic groups with spherical boundary of dimension 3 or at least 5 are virtually fundamental groups of closed, orientable, aspherical manifolds, provided that there are sufficiently many quasi-convex, codimension-1 subgroup
Externí odkaz:
http://arxiv.org/abs/2406.08779
No progenitor of a Type Ia supernova is known, but in old population early-type galaxies, one may find SN Ia associated with globular clusters, yielding a population age and metallicity. It also provides insight into the formation path and the SN enh
Externí odkaz:
http://arxiv.org/abs/2405.09701
We study the classifying space B Diff(M) of the diffeomorphism group of a connected, compact, orientable 3-manifold M. In the case that M is reducible we build a contractible space parametrising the systems of reducing spheres. We use this to prove t
Externí odkaz:
http://arxiv.org/abs/2404.12748