Zobrazeno 1 - 10
of 5 403
pro vyhledávání: '"Hubble sequence"'
Autor:
Graham, Alister W.
Publikováno v:
MNRAS (2023) 522, 3588
One of the most protracted problems in astronomy has been understanding the evolution of galaxy morphology. Much discussion has surrounded how lenticular galaxies may form a bridging population between elliptical and spiral galaxies. However, with re
Externí odkaz:
http://arxiv.org/abs/2305.03242
Autor:
Ferreira, Leonardo, Conselice, Christopher J., Sazonova, Elizaveta, Ferrari, Fabricio, Caruana, Joseph, Tohill, Clár-Bríd, Lucatelli, Geferson, Adams, Nathan, Irodotou, Dimitrios, Marshall, Madeline A., Roper, Will J., Lovell, Christopher C., Verma, Aprajita, Austin, Duncan, Trussler, James, Wilkins, Stephen M.
We present results on the morphological and structural evolution of a total of 4265 galaxies observed with JWST at $1.5 < z < 8$ in the JWST CEERS observations that overlap with the CANDELS EGS field. This is the biggest visually classified sample ob
Externí odkaz:
http://arxiv.org/abs/2210.01110
Akademický článek
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Akademický článek
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Autor:
Cheng, Ting-Yun, Huertas-Company, Marc, Conselice, Christopher J., Aragón-Salamanca, Alfonso, Robertson, Brant E., Ramachandra, Nesar
We explore unsupervised machine learning for galaxy morphology analyses using a combination of feature extraction with a vector-quantised variational autoencoder (VQ-VAE) and hierarchical clustering (HC). We propose a new methodology that includes: (
Externí odkaz:
http://arxiv.org/abs/2009.11932
Autor:
Falcón-Barroso, J., van de Ven, G., Lyubenova, M., Méndez-Abreu, J., Aguerri, J. A. L., García-Lorenzo, B., Bekeraité, S., Sánchez, S. F., Husemann, B., García-Benito, R., Delgado, R. M. González, Mast, D., Walcher, C. J., Zibetti, S., Zhu, L., Barrera-Ballesteros, J. K., Galbany, L., Sánchez-Blázquez, P., Singh, R., Bosch, R. C. E. van den, Wild, V., Bland-Hawthorn, J., Fernandes, R. Cid, de Lorenzo-Cáceres, A., Gallazzi, A., Marino, R. A., Márquez, I., Peletier, R. F., Pérez, E., Pérez, I., Roth, M. M., Rosales-Ortega, F. F., Ruiz-Lara, T., Wisotzki, L., Ziegler, B.
Publikováno v:
A&A 632, A59 (2019)
[Abridged] We present the apparent stellar angular momentum of 300 galaxies across the Hubble sequence, using integral-field spectroscopic data from the CALIFA survey. Adopting the same $\lambda_\mathrm{R}$ parameter previously used to distinguish be
Externí odkaz:
http://arxiv.org/abs/1910.06236
Autor:
Huertas-Company, M., Rodriguez-Gomez, V., Nelson, D., Pillepich, A., Bernardi, M., Domínguez-Sánchez, H., Genel, S., Pakmor, R., Snyder, G. F., Vogelsberger, M.
We analyze the optical morphologies of galaxies in the IllustrisTNG simulation at $z\sim0$ with a Convolutional Neural Network trained on visual morphologies in the Sloan Digital Sky Survey. We generate mock SDSS images of a mass complete sample of $
Externí odkaz:
http://arxiv.org/abs/1903.07625
We present multi-component decomposition of high-quality $R$-band images of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey. In addition to bulges and disks, we successfully model nuclei, bars, disk breaks, nuclear/inner lenses, and inner ri
Externí odkaz:
http://arxiv.org/abs/1901.03195
Autor:
Fall, S. Michael, Romanowsky, Aaron J.
This paper provides a summary of our recent work on the scaling relations between the specific angular momentum j_* and mass M_* of the stellar parts of normal galaxies of different bulge fraction beta_*. We find that the observations are consistent
Externí odkaz:
http://arxiv.org/abs/1812.06144