Matches in SemOpenAlex for { <https://semopenalex.org/work/W4285596895> ?p ?o ?g. }
Showing items 1 to 55 of
55
with 100 items per page.
- W4285596895 abstract "Dusty star-forming galaxies (DSFGs) at redshift z$geq$1 are among the most vigorously star-forming galaxies in the Universe. However, their dense ($geq$10$^5$ cm$^{-3}$ ) gas phase - typically traced by HCN(1-0) - remains almost entirely unexplored: only two DSFGs have been detected in HCN(1-0) to date. We present results of a JVLA survey of the J=1-0 transition of HCN, HCO+, and HNC(1-0) in six strongly lensed DSFGs at z = 2.5 - 3.3, effectively doubling the number of DSFGs with deep observations of these lines. We detect HCN(1-0) emission in one source (J1202+5354, 4.4$sigma$), with a tentative HCO+ (1-0) detection in another (J1609+6045, 3.3$sigma$). Spectral stacking yields strict upper limits on the HCN/FIR ($leq$3.6$times$10$^{-4}$) and HCN/CO(1-0) ratios ($leq$0.045). The inferred HCN/FIR ratios (a proxy for the star-formation efficiency) are consistent with those in z$sim$0 FIR-luminous starbursts. However, the HCN/CO ratios - a proxy for the dense-gas fraction - are a factor of a few lower than suggested by the two previous DSFG detections. Our results imply that most DSFGs have low dense-gas fractions. A comparison with Krumholz & Thompson (2007) models of star-forming galaxies indicates that the bulk of gas in DSFGs is at lower densities ($approx$10$^2$ cm$^{-3}$ ), similar to normal star-forming galaxies, rather than ultraluminous starbursts." @default.
- W4285596895 created "2022-07-16" @default.
- W4285596895 creator A5003696794 @default.
- W4285596895 creator A5007194862 @default.
- W4285596895 creator A5009774252 @default.
- W4285596895 creator A5032886875 @default.
- W4285596895 creator A5033530499 @default.
- W4285596895 creator A5051296471 @default.
- W4285596895 creator A5069070639 @default.
- W4285596895 creator A5070054234 @default.
- W4285596895 creator A5089952318 @default.
- W4285596895 date "2022-07-14" @default.
- W4285596895 modified "2023-10-16" @default.
- W4285596895 title "PRUSSIC I - a JVLA survey of HCN/HCO+/HNC (1-0) emission in z$sim$3 dusty galaxies: Low dense-gas fractions in high-redshift star-forming galaxies" @default.
- W4285596895 doi "https://doi.org/10.48550/arxiv.2207.06967" @default.
- W4285596895 hasPublicationYear "2022" @default.
- W4285596895 type Work @default.
- W4285596895 citedByCount "0" @default.
- W4285596895 crossrefType "posted-content" @default.
- W4285596895 hasAuthorship W4285596895A5003696794 @default.
- W4285596895 hasAuthorship W4285596895A5007194862 @default.
- W4285596895 hasAuthorship W4285596895A5009774252 @default.
- W4285596895 hasAuthorship W4285596895A5032886875 @default.
- W4285596895 hasAuthorship W4285596895A5033530499 @default.
- W4285596895 hasAuthorship W4285596895A5051296471 @default.
- W4285596895 hasAuthorship W4285596895A5069070639 @default.
- W4285596895 hasAuthorship W4285596895A5070054234 @default.
- W4285596895 hasAuthorship W4285596895A5089952318 @default.
- W4285596895 hasBestOaLocation W42855968951 @default.
- W4285596895 hasConcept C121332964 @default.
- W4285596895 hasConcept C1276947 @default.
- W4285596895 hasConcept C33024259 @default.
- W4285596895 hasConcept C44870925 @default.
- W4285596895 hasConcept C98444146 @default.
- W4285596895 hasConceptScore W4285596895C121332964 @default.
- W4285596895 hasConceptScore W4285596895C1276947 @default.
- W4285596895 hasConceptScore W4285596895C33024259 @default.
- W4285596895 hasConceptScore W4285596895C44870925 @default.
- W4285596895 hasConceptScore W4285596895C98444146 @default.
- W4285596895 hasLocation W42855968951 @default.
- W4285596895 hasOpenAccess W4285596895 @default.
- W4285596895 hasPrimaryLocation W42855968951 @default.
- W4285596895 hasRelatedWork W2025120287 @default.
- W4285596895 hasRelatedWork W2105211665 @default.
- W4285596895 hasRelatedWork W2613721714 @default.
- W4285596895 hasRelatedWork W2735730143 @default.
- W4285596895 hasRelatedWork W2999277572 @default.
- W4285596895 hasRelatedWork W3084546154 @default.
- W4285596895 hasRelatedWork W3099171929 @default.
- W4285596895 hasRelatedWork W3125203872 @default.
- W4285596895 hasRelatedWork W3125708035 @default.
- W4285596895 hasRelatedWork W3127081719 @default.
- W4285596895 isParatext "false" @default.
- W4285596895 isRetracted "false" @default.
- W4285596895 workType "article" @default.