Results 71 to 80 of about 18,267 (299)

In the Trenches of the Solar–Stellar Connection. VII. Wilson–Bappu 2022

The Astrophysical Journal Supplement Series, 2023
The Wilson–Bappu effect (WBE) is a remarkable correlation between the width of the chromospheric emission core of the Ca ii 3934 Å K line and stellar absolute visual magnitude over an astonishing range, from diminutive red dwarfs to bloated yellow ...
Thomas Ayres
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Effect of Uncertainties in Stellar Model Parameters on Estimated Masses and Radii of Single Stars

, 2012
Accurate and precise values of radii and masses of stars are needed to correctly estimate properties of extrasolar planets. We examine the effect of uncertainties in stellar model parameters on estimates of the masses, radii, and average densities of ...
Chaplin, William, Elsworth, Yvonne, Basu, S, Verner, GA   +3 more
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

ON THE MAXIMUM MASS OF STELLAR BLACK HOLES [PDF]

The Astrophysical Journal, 2010
15 pages, ApJ ...
Belczynski, Krzysztof, Bulik, T., Fryer, Christopher, Ruiter, Ashley, Valsecchi, Francesca, Vink, J. S., Hurley, Jarrod   +6 more
openaire   +3 more sources

Comparing dynamical and photometric-stellar masses of early-type galaxies at z ~ 1

, 2006
Aims. The purpose of this study is to explore the relationship between galaxy stellar masses, based on multiwavelength photometry spectral template fitting and dynamical masses based on published velocity dispersion measurements, for a sample of 48 early-
Rettura, A., Cimatti, A., Eisenhardt P. R., Stanford, S. A., Lanzoni B, Popesso P, Dickinson, M., Rocca-Volmerange B, Stanford SA, Nonino M, Fosbury RAE, A. Rettura, Rosati, P., R. A. E. Fosbury, Stanford S. A., M. Dickinson, Cimatti A, D. Stern, Lanzoni, B., M. Nonino, Kuntschner H., Stern, D., ROSATI, Piero, B. Lanzoni, Nonino M., Nonino, M., B. Rocca-Volmerange, Stern D, P. R. Eisenhardt, Strazzullo, V., Di Serego Alighieri, S., di Serego Alighieri S., S. di Serego Alighieri, Kuntschner H, Fosbury, R. A. E., C. Lidman, Fosbury R. A. E., Rosati P., LANZONI, BARBARA, A. Cimatti, Kuntschner, H., H. Kuntschner, Dickinson M., Dickinson M, Strazzullo V., Eisenhardt, P. R., Lidman, C., Alighieri SDS, Lidman C., Popesso P., P. Popesso, V. Strazzullo, S. A. Stanford, Rettura A., Stern D., Rosati P, Strazzullo V, Lidman C, Eisenhardt PR, CIMATTI, ANDREA, Rocca Volmerange B, Rocca Volmerange B., Popesso, P., P. Rosati, Rocca-Volmerange, B., Rettura A   +65 more
core   +1 more source

The Spitzer Survey of Stellar Structure in Galaxies (S4G): Stellar Masses, Sizes and Radial Profiles for 2352 Nearby Galaxies [PDF]

, 2015
Accepted for publication in ApJSInternational audienceThe Spitzer Survey of Stellar Structure in Galaxies (S4G) is a volume, magnitude, and size-limited survey of 2352 nearby galaxies with deep imaging at 3.6 and 4.5um.
Athanassoula, E, Salo, Heikki, Menéndez-Delmestre, K., Sheth, K., Laurikainen, E., Hinz, J., Querejeta, Miguel, Mizusawa, Trisha, Knapen, J.H., Knapen, Johan H, Laine, Jarkko, Gadotti, Dimitri A, Laine, Seppo, Zaritsky, Dennis, Knapen, Johan H., Carlos Munoz-Mateos, Juan, Bouquin, Alexandre YK, Regan, M., Schinnerer, E., Bouquin, Alexandre Y.K., Erroz-Ferrer, Santiago, Laurikainen, Eija, Holwerda, Benne, Bosma, A., Holwerda, B., Madore, Barry, Madore, B., Laine, J., Sheth, Kartik, Courtois, Helene, Ho, Luis C., Gadotti, Dimitri A., Laine, S., Paz, A.G. de, Meidt, Sharon, Mizusawa, T., Bouquin, A.Y.K., Meidt, S., Kim, Taehyun, Athanassoula, E., Seibert, M., Kim, T., Ho, Luis, Courtois, H., Seibert, Mark, de Paz, Armando Gil, Bouquin, Alexandre Y. K., van der Wel, Sharon Meidt, Menendez-Delmestre, Karin, Muñoz-Mateos, J.C., Comeron, Sebastien, Schinnerer, Eva, Comeron, S., Zaritsky, D., Munoz-Mateos, Juan Carlos, Hinz, Joannah, Courtois, Helene M., Gadotti, Dimitri, Gadotti, D.A., Ho, L., Salo, H., Gil de Paz, Armando, Querejeta, M., Erroz-Ferrer, S., Regan, Michael, Bouquin, Alexandre Y., Bosma, Albert   +66 more
core   +4 more sources

Tracing Galaxy Evolution in the Nearby Universe: The Role of Dark Matter

The Astronomical Journal
Using a sample of ∼126,000 late-type galaxies (LTGs) from the Sloan Digital Sky Survey, we analyzed stellar mass as a function of the dynamical mass. Stellar masses are estimated using eight stellar population synthesis (SPS) models with constant initial
A. Nigoche-Netro, P. Lagos, R. J. Diaz, E. de la Fuente, M. P. Agüero, A. Ruelas-Mayorga, S. N. Kemp, R. A. Marquez-Lugo, R. Ibarra-Nuño   +8 more
doaj   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

TESS Asteroseismic Masses and Radii of Red Giants with (and without) Planets

The Astrophysical Journal
We present a study of asteroseismically derived surface gravities, masses, and radii of a sample of red giant stars both with and without confirmed planetary companions using TESS photometric light curves. These red giants were drawn from radial velocity
Myles Pope, Joleen K. Carlberg, Jeff Valenti, Doug Branton   +3 more
doaj   +1 more source