Misalignment of outflow axes in the proto-multiple systems in Perseus
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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Misalignment of outflow axes in the proto-multiple systems in Perseus. / Lee, Katherine I.; Dunham, Michael M.; Myers, Philip C.; Arce, Héctor G.; Bourke, Tyler L.; Goodman, Alyssa A.; Jørgensen, Jes Kristian; Kristensen, Lars E.; Offner, Stella S. R.; Pineda, Jaime E.; Tobin, John J.; Vorobyov, Eduard I.
I: Astrophysics Journal Letters, Bind 820, Nr. 1, L2, 2016.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Misalignment of outflow axes in the proto-multiple systems in Perseus
AU - Lee, Katherine I.
AU - Dunham, Michael M.
AU - Myers, Philip C.
AU - Arce, Héctor G.
AU - Bourke, Tyler L.
AU - Goodman, Alyssa A.
AU - Jørgensen, Jes Kristian
AU - Kristensen, Lars E.
AU - Offner, Stella S. R.
AU - Pineda, Jaime E.
AU - Tobin, John J.
AU - Vorobyov, Eduard I.
PY - 2016
Y1 - 2016
N2 - We investigate the alignment between outflow axes in nine of the youngest binary/multiple systems in the Perseus Molecular Cloud. These systems have typical member spacing larger than 1000 au. For outflow identification, we use 12CO(2-1) and 12CO(3-2) data from a large survey with the Submillimeter Array: Mass Assembly of Stellar Systems and their Evolution with the SMA. The distribution of outflow orientations in the binary pairs is consistent with random or preferentially anti-aligned distributions, demonstrating that these outflows are misaligned. This result suggests that these systems are possibly formed in environments where the distribution of angular momentum is complex and disordered, and these systems do not come from the same co-rotating structures or from an initial cloud with aligned vectors of angular momentum.
AB - We investigate the alignment between outflow axes in nine of the youngest binary/multiple systems in the Perseus Molecular Cloud. These systems have typical member spacing larger than 1000 au. For outflow identification, we use 12CO(2-1) and 12CO(3-2) data from a large survey with the Submillimeter Array: Mass Assembly of Stellar Systems and their Evolution with the SMA. The distribution of outflow orientations in the binary pairs is consistent with random or preferentially anti-aligned distributions, demonstrating that these outflows are misaligned. This result suggests that these systems are possibly formed in environments where the distribution of angular momentum is complex and disordered, and these systems do not come from the same co-rotating structures or from an initial cloud with aligned vectors of angular momentum.
KW - binaries: general
KW - ISM: kinematics and dynamics
KW - ISM: molecules
KW - stars: formation
KW - stars: protostars
KW - submillimeter: ISM
U2 - 10.3847/2041-8205/820/1/L2
DO - 10.3847/2041-8205/820/1/L2
M3 - Journal article
AN - SCOPUS:84962327204
VL - 820
JO - The Astrophysical Journal Letters
JF - The Astrophysical Journal Letters
SN - 2041-8205
IS - 1
M1 - L2
ER -
ID: 167803183