Search Results - "main sequence"

Absolute properties of BG Ind – a bright F3 system just leaving the main sequence by Rozyczka, M., Kaluzny, J., Pych, W., Konacki, M., Malek, K., Mankiewicz, L., Sokolowski, Marcin, Zarnecki, A.

Get full text

Physical and chemical conditions in methanol maser selected hot cores and UCH II regions by Purcell, C., Longmore, S., Burton, M., Walsh, Andrew, Minier, V., Cunningham, M., Balasubramanyam, R.

Subjects: “…stars: pre-main-sequence…”
Get full text
Get full text

The spatial structure of young stellar clusters. I. Subclusters by Kuhn, M., Feigelson, E., Getman, K., Baddeley, Adrian, Broos, P., Sills, A., Bate, M., Povich, M., Luhman, K., Busk, H., Naylor, T., King, R.

Subjects: “…Hii regions – ISM: structure – methods: statistical – open clusters and associations: general – - stars: formation – stars: pre-main sequence…”
Get full text

The detectability of radio emission from exoplanets by Lynch, Christene, Murphy, T., Lenc, E., Kaplan, D.

“…We report new estimates for the radio flux densities and maximum emission frequencies for the current population of known exoplanets orbiting pre-main-sequence and main-sequence stars with spectral types F-M. …”
Get full text

The mean star formation rates of unobscured QSOs: searching for evidence of suppressed or enhanced star formation by Stanley, F., Alexander, D.M., Harrison, C.M., Rosario, D.J., Wang, L., Aird, J.A., Bourne, N., Dunne, L., Dye, S., Eales, S., Knudsen, K.K., Michałowski, M.J., Valiante, E., De Zotti, G., Furlanetto, C., Ivison, R., Maddox, S., Smith, M.W.L.

“…On the basis of the available virial BH masses, and the evolving BH mass to stellar mass relationship, we find that the mean SFRs of our QSO sample are consistent with those of main sequence star-forming galaxies. Similarly the radio-luminous QSOs have mean SFRs that are consistent with both the overall QSO sample and with star-forming galaxies on the main sequence. …”
Get full text

Intelligent sequence stratigraphy through a wavelet-based decomposition of well log data by Kadkhodaie, Ali, Rezaee, M. Reza

“…Different graphical visualization techniques of the continuous wavelet transform results allowed a better understanding of the main sequence boundaries. Using the DWT, maximum flooding surface was successfully recognised from both highest frequency and low frequency contents of signals. …”
Get full text

Heating and ionization of the primordial intergalactic medium by high mass x-ray binaries by Knevitt, G., Wynn, G.A., Power, C., Bolton, James S.

“…Using a one-dimensional radiative transfer code, we predict the ionization and temperature profiles surrounding a coeval stellar population, composed of main-sequence stars and HMXBs, at various times after its formation. …”
Get full text

VizieR Online Data Catalog: Search for extraterrestrial intelligence (Isaacson+, 2017) by Isaacson, H., Siemion, A., Marcy, G., Lebofsky, M., Price, D., MacMahon, D., Croft, S., Deboer, D., Hickish, J., Werthimer, D., Sheikh, S., Hellbourg, Gregory, Enriquez, J.

“…The second is a spectral class complete sample consisting of stars across the main sequence and some giant branch stars, all within 50pc. …”
Get full text

Radio emission and mass loss rate limits of four young solar-type stars by Fichtinger, B., Güdel, M., Mutel, R., Hallinan, G., Gaidos, E., Skinner, S., Lynch, Christene, Gayley, K.

“…Observations of free-free continuum radio emission of four young main-sequence solar-type stars (EK Dra, p1UMa, ?1Ori, and ?…”
Get full text

Magnetic fields in isolated and interacting white dwarfs by Ferrario, L., Wickramasinghe, D., Kawka, Adela

“…One hypothesis is that WD magnetic fields are of fossil origin, that is, their progenitors are the magnetic main-sequence Ap/Bp stars and magnetic flux is conserved during their evolution. …”
Get full text
Get full text

Reaction paths of phosphine dissociation on silicon (001) by Warschkow, O., Curson, N., Schofield, S., Marks, Nigel, Wilson, H., Radny, M., Smith, P., Reusch, T., McKenzie, D., Simmons, M.

“…We distinguish between a main sequence of dissociation that involves PH2+H, PH+2H, and P+3H as observable intermediates, and a secondary sequence that gives rise to PH+H, P+2H, and isolated phosphorus adatoms. …”
Get full text

An asteroid belt interpretation for the timing variations of the millisecond pulsar b1937+21 by Shannon, Ryan, Cordes, J., Metcalfe, T., Lazio, T., Cognard, I., Desvignes, G., Janssen, G., Jessner, A., Kramer, M., Lazaridis, K., Purver, M., Stappers, B., Theureau, G.

“…Pulsar timing observations have revealed companions to neutron stars that include other neutron stars, white dwarfs, main-sequence stars, and planets. We demonstrate that the correlated and apparently stochastic residual times of arrival from the millisecond pulsar B1937+21 are consistent with the signature of an asteroid belt having a total mass 0.05 M ⊕. …”
Get full text

Overview of the Massive Young Star-Forming Complex Study in Infrared and X-ray (MYStIX) project by Feigelson, E., Townsley, L., Broos, P., Busk, H., Getman, K., King, R., Kuhn, M., Naylor, T., Povich, M., Baddeley, Adrian, Bate, M., Indebetouw, R., Luhman, K., McCaughrean, M., Pittard, J., Pudritz, R., Sills, A., Song, Y., Wadsley, J.

“…A catalog of MYStIX Probable Complex Members with several hundred OB stars and 31,784 low-mass pre-main sequence stars is assembled. This sample and related data products will be used to seek new empirical constraints on theoretical models of cluster formation and dynamics, mass segregation, OB star formation, star formation triggering on the periphery of H II regions, and the survivability of protoplanetary disks in H II regions. …”
Get full text

The face-on disc of MAXI J1836-194 by Russell, Thomas, Soria, Roberto, Motch, C., Pakull, M., Torres, M., Curran, Peter, Jonker, P., Miller-Jones, James

“…We use New Technology Telescope observations of the system in quiescence to place strong upper limits on the mass and radius of the donor star and the orbital period. The donor is a main-sequence star with a mass <0.65 M and a radius <0.59 R with an orbital period of <4.9 h. …”
Get full text

The massive eclipsing system ALS 1135 and variable stars in the field of the distant OB association Bochum 7 by Michalska, G., Niemczura, E., Pigulski, A., Steslicki, M., Williams, Andrew

“…Given the age of Bochum 7, these two stars areprobably pre-main-sequence pulsators. In addition, we provide UBVIC photometry for about600 stars in the observed field.…”
Get full text
Get full text

New binaries among UV-selected, hot subdwarf stars and population properties by Kawka, Adela, Vennes, S., O'Toole, S., Németh, P., Burton, D., Kotze, E., Buckley, D.

“…Two systems comprising a hot subdwarf paired with a bright main-sequence/giant companion display short-period photometric variations possibly due to irradiation or stellar activity and are also short-period candidates. …”
Get full text

Rapid evolution of the recurrence time in the repeating partial tidal disruption event eRASSt J045650.3-203750 by Liu, Z., Ryu, T., Goodwin, Andrew, Rau, A., Homan, D., Krumpe, M., Merloni, A., Grotova, I., Anderson, Gemma, Malyali, A., Miller-Jones, James

“…Our hydrodynamic simulations suggest that, in the repeating pTDE scenario, such a rapid evolution of Trecur could be reproduced if the original star is a 1 M⊙ main sequence star near the terminal age, losing nearly 80- 90% of its mass during the initial encounter with a supermassive black hole (SMBH) of a mass around 105 M⊙. …”
Get full text
Get full text

Recovery of the historical SN1957D in X-rays with Chandra by Long, K., Blair, W., Godfrey, Leith, Kuntz, K., Plucinsky, P., Soria, Roberto, Stockdale, C., Whitmore, B., Winkler, P.

“…Photometry of stars around SN1957D, using WFC3 images, indicates an age of less than 107 years and a main-sequence turnoff mass more than 17 M ☉. New spectra obtained with Gemini-South show that the optical spectrum continues to be dominated by broad [O III] emission lines, the signature of fast-moving SN ejecta. …”
Get full text

GRO J1744-28, search for the counterpart: infrared photometry and spectroscopy by Gosling, A., Bandyopadhyay, R., Miller-Jones, James, Farrell, S.

“…for an inclination of i= 15°; a stripped giant, or a main-sequence M3+V star would be consistent with this mass function constraint. …”
Get full text
Get full text

A deep search for faint Chandra X-ray sources, radio sources, and optical counterparts in NGC 6752 by Cohn, H.N., Lugger, P.M., Zhao, Y., Tudor, V., Heinke, C.O., Cool, A.M., Anderson, J., Strader, J., Miller-Jones, James

“…Both groups of CVs have an inferred mass above that of the main-sequence turnoff stars. We discuss the implications for the masses of the CV components.…”
Get full text
Get full text