Matches in SemOpenAlex for { <https://semopenalex.org/work/W2945574895> ?p ?o ?g. }
- W2945574895 endingPage "A57" @default.
- W2945574895 startingPage "A57" @default.
- W2945574895 abstract "The high-quality OmegaCAM photometry of the 3x3 deg around the Orion Nebula Cluster (ONC) in r, and i filters by Beccari et al.(2017) revealed three well-separated pre-main sequences in the color-magnitude diagram (CMD). The objects belonging to the individual sequences are concentrated towards the center of the ONC. The authors concluded that there are two competitive scenarios: a population of unresolved binaries and triples with an exotic mass ratio distribution, or three stellar populations with different ages. We use Gaia DR2 in combination with the photometric OmegaCAM catalog to test and confirm the presence of the putative three stellar populations. We also study multiple stellar systems in the ONC for the first time using Gaia DR2. We confirm that the second and third sequence members are more centrally concentrated towards the center of the ONC. In addition we find an indication that the parallax and proper motion distributions are different among the members of the stellar sequences. The age difference among stellar populations is estimated to be 1-2 Myr. We use Gaia measurements to identify and remove as many unresolved multiple system candidates as possible. Nevertheless we are still able to recover two well-separated sequences with evidence for the third one, supporting the existence of the three stellar populations. We were able to identify a substantial number of wide binary objects (separation between 1000-3000 au). This challenges previously inferred values that suggested no wide binary stars exist in the ONC. Our inferred wide-binary fraction is approx 5%. We confirm the three populations correspond to three separated episodes of star formation. Based on this result, we conclude that star formation is not happening in a single burst in this region. (abridged)" @default.
- W2945574895 created "2019-05-29" @default.
- W2945574895 creator A5049690883 @default.
- W2945574895 creator A5054137091 @default.
- W2945574895 creator A5061177743 @default.
- W2945574895 creator A5074560289 @default.
- W2945574895 creator A5074986428 @default.
- W2945574895 creator A5082874418 @default.
- W2945574895 creator A5086826054 @default.
- W2945574895 creator A5090661346 @default.
- W2945574895 date "2019-07-01" @default.
- W2945574895 modified "2023-10-11" @default.
- W2945574895 title "When the tale comes true: multiple populations and wide binaries in the Orion Nebula Cluster" @default.
- W2945574895 cites W147232447 @default.
- W2945574895 cites W1569860697 @default.
- W2945574895 cites W161266970 @default.
- W2945574895 cites W1927915804 @default.
- W2945574895 cites W1988434451 @default.
- W2945574895 cites W1995338653 @default.
- W2945574895 cites W2003334784 @default.
- W2945574895 cites W2008318720 @default.
- W2945574895 cites W2028163735 @default.
- W2945574895 cites W2036209984 @default.
- W2945574895 cites W2042848233 @default.
- W2945574895 cites W2048434302 @default.
- W2945574895 cites W2060949467 @default.
- W2945574895 cites W2064213204 @default.
- W2945574895 cites W2073768640 @default.
- W2945574895 cites W2115767518 @default.
- W2945574895 cites W2125769353 @default.
- W2945574895 cites W2129760210 @default.
- W2945574895 cites W2140083426 @default.
- W2945574895 cites W2146235072 @default.
- W2945574895 cites W2148165343 @default.
- W2945574895 cites W2149823722 @default.
- W2945574895 cites W2151560098 @default.
- W2945574895 cites W2161029834 @default.
- W2945574895 cites W2167635287 @default.
- W2945574895 cites W2269157750 @default.
- W2945574895 cites W2276552634 @default.
- W2945574895 cites W2415741384 @default.
- W2945574895 cites W2562429066 @default.
- W2945574895 cites W2782156206 @default.
- W2945574895 cites W2786160414 @default.
- W2945574895 cites W2790817462 @default.
- W2945574895 cites W2794337193 @default.
- W2945574895 cites W2798336535 @default.
- W2945574895 cites W2810653913 @default.
- W2945574895 cites W2842352012 @default.
- W2945574895 cites W2888581926 @default.
- W2945574895 cites W2899497983 @default.
- W2945574895 cites W3097992241 @default.
- W2945574895 cites W3098107680 @default.
- W2945574895 cites W3098175089 @default.
- W2945574895 cites W3098672106 @default.
- W2945574895 cites W3099825985 @default.
- W2945574895 cites W3100660254 @default.
- W2945574895 cites W3101911012 @default.
- W2945574895 cites W3102784118 @default.
- W2945574895 cites W3103017610 @default.
- W2945574895 cites W3105094438 @default.
- W2945574895 cites W3105164612 @default.
- W2945574895 cites W3106103873 @default.
- W2945574895 cites W3125521219 @default.
- W2945574895 cites W4289710306 @default.
- W2945574895 cites W4289883362 @default.
- W2945574895 cites W4290042936 @default.
- W2945574895 cites W4292399985 @default.
- W2945574895 cites W4297845740 @default.
- W2945574895 cites W4297889162 @default.
- W2945574895 cites W4299571250 @default.
- W2945574895 cites W4301718546 @default.
- W2945574895 cites W4301763414 @default.
- W2945574895 doi "https://doi.org/10.1051/0004-6361/201935016" @default.
- W2945574895 hasPublicationYear "2019" @default.
- W2945574895 type Work @default.
- W2945574895 sameAs 2945574895 @default.
- W2945574895 citedByCount "34" @default.
- W2945574895 countsByYear W29455748952019 @default.
- W2945574895 countsByYear W29455748952020 @default.
- W2945574895 countsByYear W29455748952021 @default.
- W2945574895 countsByYear W29455748952022 @default.
- W2945574895 countsByYear W29455748952023 @default.
- W2945574895 crossrefType "journal-article" @default.
- W2945574895 hasAuthorship W2945574895A5049690883 @default.
- W2945574895 hasAuthorship W2945574895A5054137091 @default.
- W2945574895 hasAuthorship W2945574895A5061177743 @default.
- W2945574895 hasAuthorship W2945574895A5074560289 @default.
- W2945574895 hasAuthorship W2945574895A5074986428 @default.
- W2945574895 hasAuthorship W2945574895A5082874418 @default.
- W2945574895 hasAuthorship W2945574895A5086826054 @default.
- W2945574895 hasAuthorship W2945574895A5090661346 @default.
- W2945574895 hasBestOaLocation W29455748951 @default.
- W2945574895 hasConcept C121332964 @default.
- W2945574895 hasConcept C125857072 @default.
- W2945574895 hasConcept C1276947 @default.
- W2945574895 hasConcept C144024400 @default.
- W2945574895 hasConcept C149923435 @default.