Study of the 22Ne(d, d)22Ne, 22Ne(d, p)23Ne, 22Ne(d, t)21Ne and 22Ne(p, d)21Ne reactions

Lutz, H.F.; Wesolowski, J.J.; Hansen, L.F.; Eccles, S.F.

doi:10.1016/0375-9474(67)90852-4

Cited by 43 publications

(9 citation statements)

References 24 publications

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“…Use of the optical model parameters listed above in the DWBA analysis produced normalized spectroscopic factors and strengths consistent with those obtained in Ref. [48], for both ℓ = 0 and ℓ = 2 neutron transfer.…”

Section: Resultssupporting

confidence: 80%

Experimental study of the effective nucleon-nucleon interaction using the F21(d,p)F22

et al. 2018

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The single-neutron configurations of several low-lying states in 22 F have been determined from neutron-adding cross sections of a (d,p) reaction using a 21 F radioactive beam in inverse kinematics. Final states in 22 F consisting of a proton in the π0d 5/2 orbital coupled to a neutron in either the ν0d 5/2 , ν1s 1/2 , or ν0d 3/2 orbitals were observed up to an excitation energy of ∼ 5 MeV. Spectroscopic factors and strengths were determined from the angular distribution of the cross sections using a distorted wave Born approximation method. The distribution of the ν0d 5/2 and ν1s 1/2 strength was well described by all USD effective shell model interactions, while only the more recent USDA/USDB interactions showed a marked improvement in describing the observed ν0d 3/2 strength. Diagonal two-body matrix elements of the (0d 5/2) 2 J =0−5 effective nucleon-nucleon interaction were extracted from the data and compared with previous determinations of the same matrix elements from particle-particle and hole-hole spectra, as well as the calculated results of the USDA interactions. No significant discrepancies were observed. Inspection of the monopole energies showed that an improved agreement between the different empirical matrix elements is found if a mass dependence is included.

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Section: Resultssupporting

confidence: 80%

Experimental study of the effective nucleon-nucleon interaction using the F21(d,p)F22

et al. 2018

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“…The observed low τ 3.0 /τ 9.7 indicates that high-mass star-forming activity is predominant in nuclear starbursts in local ULIRGs. This is also consistent with the high star-formation density in local ULIRGs(Lutz et al 2016), because the high-density environment leads to a high Jeans mass and an intense radiation field that destroys the H 2 O ice mantle.…”

supporting

confidence: 83%

A systematic study of ULIRGs using near-infrared absorption bands reveals a strong UV environment in their star-forming regions

Doi

Isobe

Baba

et al. 2019

Publications of the Astronomical Society of Japan

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We present a systematic study of the 3.0 µm H 2 O ice and the 3.4 µm aliphatic carbon absorption features toward 48 local ultraluminous infrared galaxies (ULIRGs) using spectra obtained by the AKARI Infrared Camera to investigate the UV environment in their star-forming regions. All the ULIRGs in our sample exhibit a ratio of optical depth of H 2 O ice to silicate dust (τ 3.0 /τ 9.7 ) that is lower than that in the Taurus dark cloud. This implies that ULIRGs cannot be described as an ensemble of low-mass star-forming regions and that a significant amount of high-mass star-forming regions contribute to star-forming clouds in local ULIRGs. The results also show that the ratios of optical depth of aliphatic carbon to silicate dust, τ 3.4 /τ 9.7 , exhibit diverse values. We investigate two effects that can affect this ratio: the geometric temperature gradient (which increases the ratio) and the intense UV environment (which decreases it).The geometric temperature gradient is typically considered as a sign of active galactic nuclei (AGN). ULIRGs with AGN signs (optical classification, near-infrared color, and a PAH emission strength of 3.3 µm) indeed tend to exhibit a large τ 3.4 /τ 9.7 ratio. However, we find that the presence of buried AGN is not the only cause of the geometric temperature gradient, because the enhancement of the ratio is also evident in pure starburst-like ULIRGs without these AGN signs. Regarding the intense UV environment in star-forming regions, the correlation between the aliphatic carbon ratio and the ratio of the [C II] 158 µm line luminosity to the far-infrared luminosity (L [C II] /L FIR ), which represents the UV environment in photodissociation regions, implies that the intense UV environment causes the decrease of the aliphatic carbon ratio.We find that an intense UV environment (G/n H > 3) in star-forming regions is needed for the aliphatic carbon ratio to be suppressed.

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“…have been recognized to be rich sources also for this group of glycosides. 11-13q28*34*38 As to p-ionone related structures, functionalization of the 5,6-double bond leading to 5,6-epoxy-(17-19), 6-hydroxy- (25,26) and 5,6dihydroxy structures (20,35,36) has been observed. P-Ionone-derived structures, in which the 5,6-double bond was preserved, comprise the 3,4-dihydroxylated compounds 29-32 as well as the P-D-ghcoside 28, the so-called icariside B4, which has been characterized from Epimedium grandifl~rum.~' With compounds 21-24 a few aionone-derived 3-oxygenated glycosides have been reported, including multiple conjugates of the ubiquitous plant constituent vomifoliol 21 (see Figure 2).…”

Section: Higher-oxygenated Conjugatesmentioning

confidence: 98%

C₁₃‐Norisoprenoid glycosides in plant tissues: An overview on their occurrence, composition and role as flavour precursors

Winterhalter

Schreier

1994

Flavour & Fragrance J

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Study of the 22Ne(d, d)22Ne, 22Ne(d, p)23Ne, 22Ne(d, t)21Ne and 22Ne(p, d)21Ne reactions

Cited by 43 publications

References 24 publications

Experimental study of the effective nucleon-nucleon interaction using the F21(d,p)F22

Experimental study of the effective nucleon-nucleon interaction using the F21(d,p)F22

A systematic study of ULIRGs using near-infrared absorption bands reveals a strong UV environment in their star-forming regions

C₁₃‐Norisoprenoid glycosides in plant tissues: An overview on their occurrence, composition and role as flavour precursors

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Study of the 22Ne(d, d)22Ne, 22Ne(d, p)23Ne, 22Ne(d, t)21Ne and 22Ne(p, d)21Ne reactions

Cited by 43 publications

References 24 publications

Experimental study of the effective nucleon-nucleon interaction using the F21(d,p)F22

Experimental study of the effective nucleon-nucleon interaction using the F21(d,p)F22

A systematic study of ULIRGs using near-infrared absorption bands reveals a strong UV environment in their star-forming regions

C13‐Norisoprenoid glycosides in plant tissues: An overview on their occurrence, composition and role as flavour precursors

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C₁₃‐Norisoprenoid glycosides in plant tissues: An overview on their occurrence, composition and role as flavour precursors