Zobrazeno 1 - 10
of 38
pro vyhledávání: '"van Rensbergen, Walter"'
Our binary evolutionary code predicted until now the position of both stars in the HRD, the characteristics of the accretion disk around the gainer in the case that there is enough space between both stars for this disk. Our code includes a complete
Externí odkaz:
http://arxiv.org/abs/2003.11387
Algols observed with a high mass ratio are not sufficiently produced by conservative binary evolution. In this contribution we propose a liberal scenario in which the binary can lose mass. In the case of direct impact the gainer spins up; sometimes u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3848::cc4e0879e8f1a9b829fd27ae35b9740e
https://biblio.vub.ac.be/vubir/rapid-mass-transfer-can-drive-mass-out-of-a-binary(46ce4f27-6ecc-4972-847b-eb5b4ab524a9).html
https://biblio.vub.ac.be/vubir/rapid-mass-transfer-can-drive-mass-out-of-a-binary(46ce4f27-6ecc-4972-847b-eb5b4ab524a9).html
We determine the present evolutionary state and the restrictions on the initial mass ratios of RZ Cas, KO Aql and S Equ. The gainers are in an early main sequence stage (Xc > 0.5), with KO Aql being almost unevolved. The initial donor/gainer mass rat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3848::a21b57411ebd2d9f132236b1271d23d9
https://biblio.vub.ac.be/vubir/rz-cas-ko-aql-and-s-equ-a-piece-of-cake-of-case-a-rlof(d20c1867-2473-483c-9924-b5438c1d9bb0).html
https://biblio.vub.ac.be/vubir/rz-cas-ko-aql-and-s-equ-a-piece-of-cake-of-case-a-rlof(d20c1867-2473-483c-9924-b5438c1d9bb0).html
In a liberal evolutionary scenario, mass can escape from a binary during eras of fast mass transfer. We calculate the mass lost by binaries with a B-type primary at birth where mass transfer starts during hydrogen core burning of the donor. We simula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad9931ab9ad05fe2c9150dec1e42dc96
Aims. We determine the present evolutionary state and the restrictions on the initial mass ratios of RZ Cas, KO Aql and S Equ. Methods. We compare mass-gaining stars with evolutionary models of single stars with the same mass and subsequently compare
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3848::a76089fc0b297983af3e37ee4dfb4611
https://biblio.vub.ac.be/vubir/on-the-origin-and-evolutionary-state-of-rz-cassiopeiae-ko-aquilae-and-s-equulei(0d42a72b-58e7-4730-a4eb-b146a367c3ed).html
https://biblio.vub.ac.be/vubir/on-the-origin-and-evolutionary-state-of-rz-cassiopeiae-ko-aquilae-and-s-equulei(0d42a72b-58e7-4730-a4eb-b146a367c3ed).html
The observed distribution of orbital periods of Algols with a B-type primary at birth agrees fairly well with the prediction from conservative theory. Conservative evolution fails, however, to produce the rather large fraction of Algols observed with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3848::3108a511bbb04a7e411c5b8a6cc8bbba
https://biblio.vub.ac.be/vubir/evolutionary-models-of-binaries(deabffe3-2390-468b-b284-64a36216e8fe).html
https://biblio.vub.ac.be/vubir/evolutionary-models-of-binaries(deabffe3-2390-468b-b284-64a36216e8fe).html
Autor:
Van Rensbergen, Walter, De Greve, Jean, De Loore, Camiel, Mennekens, Nicki, Timmermans, Frederik
Algol binaries show a well defined distribution of orbital periods and mass ratios. The distribution of mass ratios can however not be obtained by conservative binary evolution only. Many progenitors of Algols lose some mass and little angular moment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3848::ab86094aef30d34149efbaf4a4865b40
https://biblio.vub.ac.be/vubir/rapid-rotation-and-accretion-luminosity-can-drive-mass-out-of-a-binary(e20538a6-9609-4672-bfdc-5cb345348c00).html
https://biblio.vub.ac.be/vubir/rapid-rotation-and-accretion-luminosity-can-drive-mass-out-of-a-binary(e20538a6-9609-4672-bfdc-5cb345348c00).html
Autor:
Van Rensbergen, Walter, De Loore, Camiel, De Greve, Jean, Mennekens, Nicki, Timmermans, Frederik
Binaries contribute to the interstellar mass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3848::804bf08ba07d8f1b566eb67dd178d0a3
https://biblio.vub.ac.be/vubir/binaries-contribute-to-the-interstellar-mass(17edfe5b-c4d1-4be4-93fa-cf6350d300ec).html
https://biblio.vub.ac.be/vubir/binaries-contribute-to-the-interstellar-mass(17edfe5b-c4d1-4be4-93fa-cf6350d300ec).html
We revisited analytical expressions for the distribution of orbital periods and mass ratios for non-evolved binaries with a B type primary. Selection effects governing the observations were taken into account in order to compare theory with observati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e3f24c84b3603968e108b4826743c0bf
https://biblio.vub.ac.be/vubir/algols-contribute-to-the-interstellar-mass(1c8a9ac7-fc8b-4b69-a1f0-d6fd288dd84c).html
https://biblio.vub.ac.be/vubir/algols-contribute-to-the-interstellar-mass(1c8a9ac7-fc8b-4b69-a1f0-d6fd288dd84c).html
Initial distributions of mass-ratios and orbital periods of binaries with a B-type primary are determined from the 9th Catalogue of Spectroscopic Binaries. We used the Brussels binary evolutionary code to compare the observed distributions of periods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2862c582e198e5389095b99b8542eeca
https://biblio.vub.ac.be/vubir/evolution-of-close-binaries-with-a-btype-primary-at-birth(a23bc7b9-6ce7-43d4-a4b6-65467c20a49c).html
https://biblio.vub.ac.be/vubir/evolution-of-close-binaries-with-a-btype-primary-at-birth(a23bc7b9-6ce7-43d4-a4b6-65467c20a49c).html