SDSS-IV MaNGA: Stellar angular momentum of about 2300 galaxies: unveiling the bimodality of massive galaxy properties by Graham, MT, Cappellari, M, Li, H, Mao, S, Bershady, M, Bizyaev, D, Brinkmann, J, Brownstein, JR, Bundy, K, Drory, N, Law, DR, Pan, K, Thomas, D, Wake, DA, Weijmans, A-M, Westfall, KB, Yan, R

“…We also visually classify each galaxy according to its optical morphology and two-dimensional stellar velocity field. Comparing these classifications to quantitative λRe measurements reveals tight relationships between angular momentum and galaxy structure. …”

Classifying Optical (Out)bursts in Cataclysmic Variables: The Distinct Observational Characteristics of Dwarf Novae, Micronovae, Stellar Flares, and Magnetic Gating by Krystian Iłkiewicz, Simone Scaringi, Martina Veresvarska, Domitilla De Martino, Colin Littlefield, Christian Knigge, John A. Paice, Anwesha Sahu

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TOI-1685 b Is a Hot Rocky Super-Earth: Updates to the Stellar and Planet Parameters of a Popular JWST Cycle 2 Target by Burt, JA, Hooton, MJ, Mamajek, EE, Barragán, O, Millholland, SC, Fairnington, TR, Fisher, C, Halverson, SP, Huang, CX, Brady, M, Seifahrt, A, Gaidos, E, Luque, R, Kasper, D, Bean, JL

“…Here we include a refined stellar classification with a focus on addressing the host star’s metallicity, an updated planet radius measurement that includes two sectors of TESS data and multicolor photometry from a variety of ground-based facilities, and a more accurate dynamical mass measurement from a combined CARMENES, InfraRed Doppler, and MAROON-X radial velocity data set. …”

Beyond Spectroscopy. II. Stellar Parameters for over 20 Million Stars in the Northern Sky from SAGES DR1 and Gaia DR3 by Yang Huang, Timothy C. Beers, Haibo Yuan, Ke-Feng Tan, Wei Wang, Jie Zheng, Chun Li, Young Sun Lee, Hai-Ning Li, Jing-Kun Zhao, Xiang-Xiang Xue, Yujuan Liu, Huawei Zhang, Xue-Ang Sun, Ji Li, Hong-Rui Gu, Christian Wolf, Christopher A. Onken, Jifeng Liu, Zhou Fan, Gang Zhao

“…We present precise photometric estimates of stellar parameters, including effective temperature, metallicity, luminosity classification, distance, and stellar age, for nearly 26 million stars using the methodology developed in the first paper of this series, based on the stellar colors from the Stellar Abundances and Galactic Evolution Survey (SAGES) Data Release 1 and Gaia Early Data Release 3. …”
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Classification of variable stars in the WFCAM Transit Survey by Moya Andrés, Barrado David, Sarro Luis M., Stoev Hristo

“…The derived parameters of their light curves will be helpful for the creation of a robust sample of light curves (and their parameters thereof) of classified variable stars in the near-infrared for the automatic classification of light curves of stellar objects in the J-band.…”
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“In-System” Fission-Events: An Insight into Puzzles of Exoplanets and Stars? by Elizabeth P. Tito, Vadim I. Pavlov

“…This paper reviews and reinterprets astronomical data within the “fission-events framework”. Classification of stellar systems as “pristine” or “impacted” is offered.…”
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Walkaway Star Candidates in IC 348 and Their Possible Birthplaces by Xingyu Zhou, Gregory J. Herczeg, Min Fang, Xiaolong Wang, Bin B. Ren

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Searching for Barium Stars from the LAMOST Spectra Using the Machine-learning Method: I by Fengyue Guo, Zhongding Cheng, Xiaoming Kong, Yatao Zhang, Yude Bu, Zhenping Yi, Bing Du, Jingchang Pan

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The ATLAS(3D) project - III. A census of the stellar angular momentum within the effective radius of early-type galaxies: unveiling the distribution of fast and slow rotators by Emsellem, E, Cappellari, M, Krajnovic, D, Alatalo, K, Blitz, L, Bois, M, Bournaud, F, Bureau, M, Davies, R, Davis, T, de Zeeuw, P, Khochfar, S, Kuntschner, H, Lablanche, P, McDermid, R, Morganti, R, Naab, T, Oosterloo, T, Sarzi, M, Scott, N, Serra, P, van de Ven, G, Weijmans, A, Young, L

“…We exploit the λR parameter (previously used via a constant threshold value of 0.1) to characterize the existence of two families of ETGs: slow rotators which exhibit complex stellar velocity fields and often include stellar kinematically distinct cores, and fast rotators which have regular velocity fields. …”

A Novel Algorithm for Initial Cluster Center Selection by Yating Li, Jianghui Cai, Haifeng Yang, Jifu Zhang, Xujun Zhao

“…Meanwhile, the initial cluster centers of spectral data are of good agreement with the actual stellar classifications.…”
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Sample and Statistical Analysis of the Near-Earth Object Wide-field Infrared Survey Explorer Variability of the 6.7 GHz Methanol Maser Sources by Shi-Min Song, Xi Chen, Zhi-Qiang Shen, You-Xin Wang, Kai Yang, Dan Miao, Jiong-Heng Wu, Jun-Ting Liu, Yan-Kun Zhang

“…We present a statistical study of infrared variability using the Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) database for a sample consisting of 1085 high-mass young stellar objects (YSOs) related to 6.7 GHz methanol masers. …”
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Galaxy Zoo: Morphological classification of galaxy images from the Illustris simulation by Dickinson, H, Fortson, L, Lintott, C, Scarlata, C, Willett, K, Bamford, S, Beck, M, Cardamone, C, Galloway, M, Simmons, B, Keel, W, Kruk, S, Masters, K, Vogelsberger, M, Torrey, P, Snyder, G

“…Toward higher masses, simulated and observed galaxies converge and exhibit similar morphology distributions. The stellar mass threshold indicated by this divergent behavior confirms recent works using parametric measures of morphology from Illustris simulated images. …”

The SAURON project -- IX. A kinematic classification for early-type galaxies by Emsellem, E, Cappellari, M, Krajnovic, D, Ven, G, Bacon, R, Bureau, M, Davies, R, Zeeuw, P, Falcon-Barroso, J, Kuntschner, H, McDermid, R, Peletier, R, Sarzi, M

“…We define a new parameter LambdaR which involves luminosity weighted averages over the full 2D kinematic field, as a proxy to quantify the observed projected stellar angular momentum per unit mass. We use it as a basis for a new kinematic classification: early-type galaxies are separated into slow and fast rotators (SRs, FRs), depending on whether they have LambdaR values within their effective radius Re below or above 0.1, respectively. …”

Galaxy Zoo: Morphological Classification of Galaxy Images from the Illustris Simulation by Dickinson, Hugh, Fortson, Lucy, Lintott, Chris, Scarlata, Claudia, Willett, Kyle, Bamford, Steven, Beck, Melanie, Cardamone, Carolin, Galloway, Melanie, Simmons, Brooke, Keel, William, Kruk, Sandor, Masters, Karen, Snyder, Gregory F., Vogelsberger, Mark, Torrey, Paul A.

“…Toward higher masses, the visual morphologies for simulated and observed galaxies converge and exhibit similar distributions. The stellar mass threshold indicated by this divergent behavior confirms recent works using parametric measures of morphology from Illustris simulated images. …”
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Towards a new galaxy template library for multi-colour classification by Borch, A, Meisenheimer, K, Wolf, C, Gray, M

“…However, there is an obvious weakness in this classification scheme: The relation between star formation history and SED remains unclear. …”

An XMM-Newton View of the Andromeda Galaxy as Explored in a Legacy Survey (New-ANGELS). I. The X-Ray Source Catalog by Rui Huang, Jiang-Tao Li, Wei Cui, Joel N. Bregman, Xiang-Dong Li, Gabriele Ponti, Zhijie Qu, Q. Daniel Wang, Yi Zhang

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UNCOVER: JWST Spectroscopy of Three Cold Brown Dwarfs at Kiloparsec-scale Distances by Adam J. Burgasser, Rachel Bezanson, Ivo Labbe, Gabriel Brammer, Sam E. Cutler, Lukas J. Furtak, Jenny E. Greene, Roman Gerasimov, Joel Leja, Richard Pan, Sedona H. Price, Bingjie Wang, John R. Weaver, Katherine E. Whitaker, Seiji Fujimoto, Vasily Kokorev, Pratika Dayal, Themiya Nanayakkara, Christina C. Williams, Danilo Marchesini, Adi Zitrin, Pieter van Dokkum

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An XMM-Newton View of the Symbiotic Stars HM Sge, NQ Gem, and PU Vul by Jesús A. Toalá, Marissa K. Botello, Laurence Sabin

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The Presolar Grain Database. I. Silicon Carbide by Thomas Stephan, Reto Trappitsch, Peter Hoppe, Andrew M. Davis, Maitrayee Bose, Asmaa Boujibar, Frank Gyngard, K. Mairin Hynes, Nan Liu, Larry R. Nittler, Ryan C. Ogliore

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TESS Photometry of AM Her and AR UMa: Binary Parameters, Cyclotron Emission Modeling, and Mass Transfer Duty Cycles by Paul A. Mason, Pasi Hakala, Kinwah Wu, Paul E. Barrett, Krystian Iłkiewicz, Colin Littlefield, Lorena C. Monroy, Hasan C. Sezer, Francisco Jablonski, Peter Garnavich, Paula Szkody, Gavin Ramsay, Christopher Duffy, Simone Scaringi

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