Matches in SemOpenAlex for { <https://semopenalex.org/work/W4366400466> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W4366400466 abstract "(abridged) Far-infrared (FIR) line emission provides key information about the gas cooling and heating due to shocks and UV radiation associated with the early stages of star formation. Gas cooling via FIR lines might, however, depend on metallicity. We aim to quantify the FIR line emission and determine the spatial distribution of the CO rotational temperature, ultraviolet (UV) radiation field, and H2 number density toward the embedded cluster Gy 3-7 in the CMa-l224 star-forming region, whose metallicity is expected to be intermediate between that of the LMC and the Solar neighborhood. By comparing the total luminosities of CO and [O I] toward Gy 3-7 with values found for low- and high-mass protostars extending over a broad range of metallicities, we also aim to identify the possible effects of metallicity on the FIR line cooling within our Galaxy. We studied SOFIA/FIFI-LS spectra of Gy 3-7 covering several FIR lines. The spatial extent of CO high-J (J>14) emission resembles that of the elongated 160 um continuum emission detected with Herschel. The CO transitions from J=14-13 to J=16-15 are detected throughout the cluster and show a median rotational temperature of 170+/-30 K on Boltzmann diagrams. Comparisons to other protostars observed with Herschel show a good agreement with intermediate-mass sources in the inner Galaxy. Assuming an origin of the [O I] and high-J CO emission in UV-irradiated C-shocks, we obtained pre-shock H2 number densities of 10^4-5 cm-3 and UV radiation field strengths of 0.1-10 Habing fields. Far-IR line observations reveal ongoing star formation in Gy 3-7, dominated by intermediate-mass Class 0/I young stellar objects. The ratio of molecular-to-atomic far-IR line emission shows a decreasing trend with bolometric luminosities of the protostars. However, it does not indicate that the low-metallicity has an impact on the line cooling in Gy 3-7." @default.
- W4366400466 created "2023-04-21" @default.
- W4366400466 creator A5005760838 @default.
- W4366400466 creator A5006328407 @default.
- W4366400466 creator A5007101390 @default.
- W4366400466 creator A5007456288 @default.
- W4366400466 creator A5008787978 @default.
- W4366400466 creator A5013726658 @default.
- W4366400466 creator A5019379638 @default.
- W4366400466 creator A5032693795 @default.
- W4366400466 creator A5036229478 @default.
- W4366400466 creator A5037806930 @default.
- W4366400466 creator A5045803373 @default.
- W4366400466 creator A5063990827 @default.
- W4366400466 creator A5064907262 @default.
- W4366400466 creator A5071936527 @default.
- W4366400466 creator A5074359714 @default.
- W4366400466 creator A5083071711 @default.
- W4366400466 date "2023-04-17" @default.
- W4366400466 modified "2023-09-27" @default.
- W4366400466 title "Far-infrared line emission from the outer Galaxy cluster Gy 3-7 with SOFIA/FIFI-LS: Physical conditions and UV fields" @default.
- W4366400466 doi "https://doi.org/10.48550/arxiv.2304.08127" @default.
- W4366400466 hasPublicationYear "2023" @default.
- W4366400466 type Work @default.
- W4366400466 citedByCount "0" @default.
- W4366400466 crossrefType "posted-content" @default.
- W4366400466 hasAuthorship W4366400466A5005760838 @default.
- W4366400466 hasAuthorship W4366400466A5006328407 @default.
- W4366400466 hasAuthorship W4366400466A5007101390 @default.
- W4366400466 hasAuthorship W4366400466A5007456288 @default.
- W4366400466 hasAuthorship W4366400466A5008787978 @default.
- W4366400466 hasAuthorship W4366400466A5013726658 @default.
- W4366400466 hasAuthorship W4366400466A5019379638 @default.
- W4366400466 hasAuthorship W4366400466A5032693795 @default.
- W4366400466 hasAuthorship W4366400466A5036229478 @default.
- W4366400466 hasAuthorship W4366400466A5037806930 @default.
- W4366400466 hasAuthorship W4366400466A5045803373 @default.
- W4366400466 hasAuthorship W4366400466A5063990827 @default.
- W4366400466 hasAuthorship W4366400466A5064907262 @default.
- W4366400466 hasAuthorship W4366400466A5071936527 @default.
- W4366400466 hasAuthorship W4366400466A5074359714 @default.
- W4366400466 hasAuthorship W4366400466A5083071711 @default.
- W4366400466 hasConcept C121332964 @default.
- W4366400466 hasConcept C125857072 @default.
- W4366400466 hasConcept C1276947 @default.
- W4366400466 hasConcept C158355884 @default.
- W4366400466 hasConcept C18797539 @default.
- W4366400466 hasConcept C196939603 @default.
- W4366400466 hasConcept C198352243 @default.
- W4366400466 hasConcept C2524010 @default.
- W4366400466 hasConcept C33923547 @default.
- W4366400466 hasConcept C44870925 @default.
- W4366400466 hasConcept C4839761 @default.
- W4366400466 hasConcept C69607484 @default.
- W4366400466 hasConcept C96141758 @default.
- W4366400466 hasConcept C98444146 @default.
- W4366400466 hasConcept C99465377 @default.
- W4366400466 hasConceptScore W4366400466C121332964 @default.
- W4366400466 hasConceptScore W4366400466C125857072 @default.
- W4366400466 hasConceptScore W4366400466C1276947 @default.
- W4366400466 hasConceptScore W4366400466C158355884 @default.
- W4366400466 hasConceptScore W4366400466C18797539 @default.
- W4366400466 hasConceptScore W4366400466C196939603 @default.
- W4366400466 hasConceptScore W4366400466C198352243 @default.
- W4366400466 hasConceptScore W4366400466C2524010 @default.
- W4366400466 hasConceptScore W4366400466C33923547 @default.
- W4366400466 hasConceptScore W4366400466C44870925 @default.
- W4366400466 hasConceptScore W4366400466C4839761 @default.
- W4366400466 hasConceptScore W4366400466C69607484 @default.
- W4366400466 hasConceptScore W4366400466C96141758 @default.
- W4366400466 hasConceptScore W4366400466C98444146 @default.
- W4366400466 hasConceptScore W4366400466C99465377 @default.
- W4366400466 hasLocation W43664004661 @default.
- W4366400466 hasOpenAccess W4366400466 @default.
- W4366400466 hasPrimaryLocation W43664004661 @default.
- W4366400466 hasRelatedWork W2017119833 @default.
- W4366400466 hasRelatedWork W2099551201 @default.
- W4366400466 hasRelatedWork W2170021816 @default.
- W4366400466 hasRelatedWork W3015058146 @default.
- W4366400466 hasRelatedWork W3097985418 @default.
- W4366400466 hasRelatedWork W3099171929 @default.
- W4366400466 hasRelatedWork W3110030419 @default.
- W4366400466 hasRelatedWork W4284897904 @default.
- W4366400466 hasRelatedWork W4288339134 @default.
- W4366400466 hasRelatedWork W4283779276 @default.
- W4366400466 isParatext "false" @default.
- W4366400466 isRetracted "false" @default.
- W4366400466 workType "article" @default.