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This Letter reports the first measurement of high-energy reactor antineutrinos at Daya Bay, with nearly 9000 inverse beta decay candidates in the prompt energy region of 8-12~MeV observed over 1958 days of data collection. A multivariate analysis is used to separate 2500 signal events from background statistically. The hypothesis of no reactor antineutrinos with neutrino energy above 10~MeV is rejected with a significance of 6.2 standard deviations. A 29\% antineutrino flux deficit in the prompt energy region of 8-11~MeV is observed compared to a recent model prediction. We provide the unfolded antineutrino spectrum above 7 MeV as a data-based reference for other experiments. This result provides the first direct observation of the production of antineutrinos from several high-$Q_{\beta}$ isotopes in commercial reactors., Comment: 7 pages, 4 figures, accepted by Physical Review Letters

A joint determination of the reactor antineutrino spectra resulting from the fission of $^{235}$U and $^{239}$Pu has been carried out by the Daya Bay and PROSPECT collaborations. This Letter reports the level of consistency of $^{235}$U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant $^{235}$U and $^{239}$Pu isotopes and improves the uncertainty of the $^{235}$U spectral shape to about 3\%. The ${}^{235}$U and $^{239}$Pu antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the $^{235}$U and $^{239}$Pu spectra based on the combination of experiments at low- and highly enriched uranium reactors., Comment: 8 pages, 5 figures, Supplementary Material Included

Aphonoides tessellatus Chopard, 1969 DISTRIBUTION. China (Hunan), Malaysia. NOTE. This species was recorded from Hunan by Yin & Liu (1995)., Published as part of Gu, J. X., Dai, L. & Huang, J. H., 2018, Crickets (Orthoptera: Grylloidea) from Hunan Province, China, pp. 8-18 in Far Eastern Entomologist 373 on page 14, DOI: 10.25221/fee.373.2, http://zenodo.org/record/7164550

Phonarellus (Phonarellus) minor (Chopard, 1959) DISTRIBUTION. China (Hunan, Guangxi, Guizhou, Yunnan), Pakistan, India, Myanmar, Vietnam, Indonesia. NOTE. This species was recorded from Hunan province by Woo et al. (1992)., Published as part of Gu, J. X., Dai, L. & Huang, J. H., 2018, Crickets (Orthoptera: Grylloidea) from Hunan Province, China, pp. 8-18 in Far Eastern Entomologist 373 on page 11, DOI: 10.25221/fee.373.2, http://zenodo.org/record/7164550

Loxoblemmus doenitzi Stein, 1881 MATERIAL EXAMINED. Hunan province: Zhangjiajie, 30.IX 1986, 2 specimens, leg. Xianwei Liu (SEM). DISTRIBUTION. China (He, 2018), Japan, Korea (Storozhenko et al., 2015). NOTE. This species was firstly recorded from Hunan by Woo et al. (1992)., Published as part of Gu, J. X., Dai, L. & Huang, J. H., 2018, Crickets (Orthoptera: Grylloidea) from Hunan Province, China, pp. 8-18 in Far Eastern Entomologist 373 on page 10, DOI: 10.25221/fee.373.2, http://zenodo.org/record/7164550, {"references":["He (2018) considered it identical with V. micado, but not formally synonymized these species."]}

Pteronemobius (Pteronemobius) nitidus (Bolívar, 1901) MATERIAL EXAMINED. Hunan province: Suoxiyu, Cili County, 4.IX 1988, 1 specimen, leg. Xianwei Liu (SEM). DISTRIBUTION. China (Hunan, Beijing, Hebei, Jiangsu, Zhejiang, Fujian, Jiangxi, Shandong, Hubei, Guangdong, Guangxi, Sichuan, Yunnan, Ningxia), Russian Far East, Korea. NOTE. This species has been recorded from Hunan province by Xia & Liu (1993). Subfamily Oecanthinae Blandchard, 1845, Published as part of Gu, J. X., Dai, L. & Huang, J. H., 2018, Crickets (Orthoptera: Grylloidea) from Hunan Province, China, pp. 8-18 in Far Eastern Entomologist 373 on page 13, DOI: 10.25221/fee.373.2, http://zenodo.org/record/7164550

Patiscus malayanus Chopard, 1969 MATERIAL EXAMINED. Hunan province: Suoxiyu, Cili City, 1–3.IX 1988, 2 specimens, leg. Xianwei Liu (SEM); Zhangjiajie, 3.X 1986, 1 specimen, leg. Xianwei Liu (SEM). DISTRIBUTION. China (Hunan, Guangxi, Guizhou, Yunnan), Andaman Islands. NOTE. This species was firstly recorded from Hunan by Xia & Liu (1993). Subfamily Gryllinae Laicharting, 1781, Published as part of Gu, J. X., Dai, L. & Huang, J. H., 2018, Crickets (Orthoptera: Grylloidea) from Hunan Province, China, pp. 8-18 in Far Eastern Entomologist 373 on page 9, DOI: 10.25221/fee.373.2, http://zenodo.org/record/7164550

Velarifictorus (Velarifictorus) ornatus (Shiraki, 1911) DISTRIBUTION. China (Hunan, Jiangsu, Shanghai, Zhejiang, Jiangxi, Sichuan, Guizhou, Yunnan, Shandong, Henan, Hubei, Fujian, Taiwan), Japan, Korea. NOTE. This species has been recorded from Hunan by Yin & Liu (1995)., Published as part of Gu, J. X., Dai, L. & Huang, J. H., 2018, Crickets (Orthoptera: Grylloidea) from Hunan Province, China, pp. 8-18 in Far Eastern Entomologist 373 on page 12, DOI: 10.25221/fee.373.2, http://zenodo.org/record/7164550

Loxoblemmus jacobsoni Chopard, 1927 DISTRIBUTION. China (Hunan, Sichuan), Thailand, Malaysia, Indonesia (Cigliano et al., 2018). NOTE. This species has been recorded from Hunan by Xia & Liu (1993)., Published as part of Gu, J. X., Dai, L. & Huang, J. H., 2018, Crickets (Orthoptera: Grylloidea) from Hunan Province, China, pp. 8-18 in Far Eastern Entomologist 373 on page 11, DOI: 10.25221/fee.373.2, http://zenodo.org/record/7164550

The importance of imposing physical boundary conditions on the $T$-matrix to remove the nonperturbative renormalization prescription dependence is stressed and demonstrated in two diagonal channels, $^1P_1$ and $^1D_2$, with the help of Pad�� expansion., 4 pages, 2 figures, to appear in Chinese Physics Letters

We carried out a Pad�� approximant analysis on a compact factor of the $T$-matrix for $NN$ scattering to explore the nonperturbative renormalization prescription in a universal manner. The utilities and virtues for this Pad�� analysis were discussed., 6 pages, 6 figures, revised version, to appear in Commun. Theor. Phys

The dynamical evolution of super star clusters (SSCs) moving in the background of a dark matter halo has been investigated as a possible event responsible for the formation of bulges in late-type spirals. The underlying physical processes include sinking of SSCs due to the dynamical friction and stripping of SSCs on their way to the center. Our model calculations show that only sinking of circumnuclear SSCs contributes to the formation of galactic bulges at the early stage. Based on the assumption of a universal density profile for the dark matter halo, and an isothermal model for the SSCs, our simulations have yielded bulges that are similar in many aspects to the observational ones. In particular, the derived surface density profiles can be well fitted by anexponential structure with nuclear cusps, which is consistent with HST observations., Comment: 12 pages, 3 figures, accepted for publication in MNRAS Letter

We find that a preliminary classification of LINERs' energetics may be made in terms of the FIR-radio correlation of Wolf-Rayet galaxies. The AGN- or starburst-supported LINERs can be distinguished by their FIR-to-radio ratio, $Q\equiv L(1.4{\rm GHz})/$ $L(60��{\rm m})>$ or $, 9 pages, 4 figures, to be published in Astronomy & Astrophysics

In this paper, we report our preliminary results on enhanced star formation activity in Seyfert 2 galaxies. By re-analysing the Tully-Fisher relation for Whittle(1992)'s sample and for a Seyfert 2s' sample selecting from Veron-Cetty & Veron (1996), we find that (1) almost all Seyfert 2 galaxies with circumnuclear star formation have a ratio of far infrared (FIR) to blue luminosities ($L_{FIR}/L_{B}$) to be larger than 1/3; (2) for Seyfert 2 galaxies with $L_{FIR}/L_{B} < 1/3$, the Tully-Fisher relation is similar to that of the normal spiral galaxies; while for those with $\rm L_{FIR}/L_{B} \geq 1/3 $, they are significantly different from the normal ones, which confirms Whittle's suggestion of enhanced star formation activities in the circumnuclear regions of these Seyfert 2 galaxies., 9 pages, Latex, with two figures, and accepted for publication in ApSS

We present optical spectra for new infrared Seyfert galaxies obtained with the 2.16m telescope at Beijing Astronomical Observatory (BAO). After wavelength and flux calibration, they are classified by the degree of nuclear activity: nine Seyfert 2 and three Seyfert 3 galaxies. In addition, by using the data from de Grijp et al.(1992), we find that (1) there exists a tight correlation between luminosities of far-infrared ($L_{FIR}$) and \Ha ($L_{H\alpha}$) for both Seyfert and HII-like (starburst) galaxies; (2) the median value of \Ha luminosities of Seyfert 1s is one magnitude larger than that of Seyfert 2s and starburst galaxies; (3) the cumulative distributions of FIR luminosities and infrared spectral index $\alpha(100,60)$ for Seyfert 1s and 2s are similar to that of starburst galaxies. We conclude that most of the far-infrared emission from Seyfert 2 galaxies is due to the violent nuclear/circumnuclear starburst, rather than the nonthermal activity in the nucleus, this may also be the case for many Seyfert 1s as well., Comment: 6 pages, incl. 4 PS figures, Latex and l-aa style A&Ap, 1997, 319, 92

New test-particle simulations have been performed to study the secular evolution of the gaseous distribution in NGC 4736. We find that the distribution of gas clouds can be understood in the frame of perturbation induced by a nuclear oval potential, in addition to a spiral-like potential. Our experiments show that both inner and outer rings are stable structures located at the inner Lindblad resonance (ILR) and the outer Lindblad resonance(OLR), respectively, in agreement with the observations of NGC 4736. One of our simplified simulations indicates that both nuclear starburst and orbital resonance might be needed for keeping the inner ring stable for a long period. We have introduced a symplectic algorithm in the orbit integration. Its stronger stability allows us to adopt a rather large time step to save computational time. Substitution of a viscous force for cloud-cloud interactions proves adequate in the case of NGC 4736., 7 pages, l-aa.sty, 6 figures available on request at jhh@nju.edu.cn, Accepted for publication in A\&A

We use the ratio $L_{\rm FIR}/L_{\rm B}$ and the IRAS color index S$_{25}$/S$_{12}$ (both widely used as indices of relative star formation rates in galaxies) to analyse subsets (containing no known AGNs or merging/interacting galaxies) of: (a) the IRAS Bright Galaxy Sample, (b) galaxies from the optically complete RSA sample which have IRAS detections in all four bands, and (c) a volume-limited IR-unselected sample. We confirm that IR-bright barred (SB) galaxies do, on average, have very significantly higher values of the FIR-optical and S$_{25}$/S$_{12}$ ratios (and presumably, higher relative star formation rates, SFR) than that do unbarred ones; the effect is most obvious in the IR colors. We also confirm that these differences are confined to early-type (S0/a - Sbc) spirals and are not evident among late-type systems (Sc - Sdm). {\it Unlike others, we see no enhancement of the SFR in weakly-barred (SAB) galaxies.} We further confirm that the effect of bars on the SFR is associated with the relative IR luminosity and show that it is detectable only in galaxies with $L_{\rm FIR}/L_{\rm B}$ $\proxgreat$ 1/3, suggesting that as soon as they have any effect, bars translate their host galaxies into this relatively IR-luminous group. Conversely, for galaxies with $L_{\rm FIR}/L_{\rm B}$ below$\sim$ 0.1 this luminosity ratio is {\it lower} among barred than unbarred systems, again confirming and quantifying an earlier result. Although there is no simple physical relation between HI content and star formation, a strong correlation of HI content with the presence of bars has been found for early-type spirals with $L_{\rm FIR}/L_{\rm B}$ $\proxgreat$ 1/3. This suggests that the availability of fuel is the factor determining just which galaxies undergo bar-induced starbursts., Comment: 12 pages, l-aa.sty, 1 table and 10 figures available on request at jhh@nju.edu.cn, accepted for publication in A\&A

We have observed an object having strong Balmer absorption lines and blue continuum. The inference about the nuclear stellar population drawn from the line ratios is basically coincident with that drawn from the continuum color, both indicating the dominant fraction of early A type population in the nucleus. This might be expected only if there has been a very massive starburst, burst strength of $>$ 10\% at least., 4 pages, l-aa.sty, 1 figure available on request at jhh@nju.edu.cn, accepted for publication in A\&A

Reactor neutrino experiments play a crucial role in advancing our knowledge of neutrinos. In this Letter, the evolution of the flux and spectrum as a function of the reactor isotopic content is reported in terms of the inverse-beta-decay yield at Daya Bay with 1958 days of data and improved systematic uncertainties. These measurements are compared with two signature model predictions: the Huber-Mueller model based on the conversion method and the SM2018 model based on the summation method. The measured average flux and spectrum, as well as the flux evolution with the Pu239 isotopic fraction, are inconsistent with the predictions of the Huber-Mueller model. In contrast, the SM2018 model is shown to agree with the average flux and its evolution but fails to describe the energy spectrum. Altering the predicted inverse-beta-decay spectrum from Pu239 fission does not improve the agreement with the measurement for either model. The models can be brought into better agreement with the measurements if either the predicted spectrum due to U235 fission is changed or the predicted U235, U238, Pu239, and Pu241 spectra are changed in equal measure.