bluuebunny/crossref_metadata_2025_split huggingface dataset:
Potensi Deforestasi di Pulau Kalimantan: Pro dan Kontra Migrasi
Authors: Berlianty Tryanita , Meiliana Trinita 
Published: July 2023

Abstract The development of IKN emerged an environmental issues which have now become one of the main concerns of Indonesian citizens, many predictions of IKN have the potential for environmental aspects. The surge in migrants on the island of Kalimantan is also included in the issue of environmental concerns that will disrupt and even damage the preservation of nature in Kalimantan, so that the existence of forest migrants reaps the pros and cons of the community which is considered to give rise to the potential for deforestation. So this research tries to analyze with the theory of Libertarian thought and Capitalism. Libertarian thinking is used to analyze the perspective of society that is pro towards the existence of migrants, while Capitalism's thinking is used to analyze the perspective of the state which is used as an investor for business capital. so that the results obtained can bring out various potentials generated from each perspective.Keywords: Business capital, migration, relocation of the national capital. AbstrakPembangunan IKN melahirkan isu lingkungan yang kini menjadi salah satu perhatian utama warga Indonesia, banyak prediksi IKN yang berpotensi pada aspek lingkungan. Lonjakan migran di Pulau Kalimantan juga termasuk kedalam isu lingkungan kekhawatiran yang akan mengganggu bahkan merusak kelestarian hutan alam di Kalimantan, sehingga keberadaan migran menuai pro dan kontra masyarakat yang dianggap akan melahirkan potensi deforestrasi. Maka penelitian ini mencoba untuk menganalisa dengan teori pemikiran Libertarian dan Kapitalisme. Pemikiran Libertarian digunakan untuk mengalisis perspektif masyarakat yang pro terhadap keberadaan migran, sedangkan pemikiran Kapitalisme digunakan untuk menganalisis perspektif negara yang dijadikan sebagai ladang modal usaha investor. sehingga hasil yang diperoleh dapat memunculkan berbagai potensi yang dihasilkan dari masing-masing perspektif.Kata Kunci: Modal usaha, migrasi, Pemindahan Ibu Kota Negara
Potential Business Utilization of Liwungan Island Pandeglang Regency in Increasing Regional Original Revenue (PAD)
Authors: Ariyan Said , Nurdin Ali , Nurlia Elly 
Published: July 2023

AbstractThe Liwungan Island is located in Citeureup Village, Panimbang, Pandeglang Regency, and the east of Tanjung Lesung beach which is part of the special economic zone. The island has a special attraction for tourists so it can be used as a potential business by the government and the local community. The aim of this research is to identify the potential business utilization for Liwungan Island of Pandeglang Regency and whether the business utilization can increase the Regional Original Revenue (PAD) of Pandeglang Regency. This research used a simplified scenario planning approach and uses the SWOT (strength, weakness, opportunity, treatment) analysis method to comprehensively observe various aspects that might affect the scenario to be formulated. The potential business discovered in this study in increasing PAD is the main business in the form of tourist needs and the provision of places and services for tourists, and the form of cooperation and utilization by the government and the community.Keywords: potential, business, liwungan island, pad AbstrakPulau Liwungan terletak di Desa Citeureup Kecamatan Panimbang Kabupaten Pandeglang, dan berada di sebelah timur pantai Tanjung Lesung yang merupakan bagian dari kawasan ekonomi khusus. Pulau ini memiliki daya tarik khusus bagi wisatawan sehingga dapat dijadikan potensi bisnis oleh pemerintah maupun masyarakat setempat. Tujuan dari penelitian ini yaitu untuk mengetahui bagaimana potensi pemanfaatan bisnis bagi Pulau Liwungan Kabupaten Pandeglang serta apakah pemanfaatan bisnis tersebut dapat meningkatkan Pendapatan Asli Daerah (PAD) Kabupaten Pandeglang. Penelitian ini menggunakan pendekatan perencanaan skenario (scenario planning) yang disederhanakan serta menggunakan metode analisis SWOT (strength, weakness, opportunity, treatment) untuk melihat secara komprehensif berbagai aspek yang mungmkin akan berpengaruh terhadap skenario yang akan dirumuskan. Maka potensi bisnis yang ditemukan dalam penelitian ini dalam meningkatkan PAD yaitu bisnis utama yang berupa kebutuhan wisatawan serta penyediaan tempat dan jasa layanan bagi wisatawan, serta bentuk kerja sama dan pemanfaatan oleh pemerintah dan masyarakat.Kata Kunci: potensi, bisnis, pulau liwungan, pad
Uncorrelated Amplitude and Frequency Variations of the Harmonics in
SX Phoenicis Star XX Cygni
Authors: Niu 牛 Jia-Shu 家树 , Liu 刘 Yue 越 , Xue 薛 Hui-Fang 会芳 
Published: July 2023

Abstract
Harmonics are quite common in pulsating stars. They are always considered to
mimic the behaviors of their independent parent pulsation modes, and are not
taken for key information in asteroseismology. Here, we report an SX Phoenicis
star XX Cygni, whose periodogram is dominated by the fundamental frequency
f
0 = 7.41481 ± 0.00004 c day−1 and its 19 harmonics.
According to the analysis of the archival data from the Transiting Exoplanet
Survey Satellite (TESS), we find that both the amplitudes and frequencies of the
fundamental mode and the harmonics vary within TESS Sectors 14–17 and 54–57,
which might be caused by the contamination of neighboring stars. What is more
interesting is that the harmonics show significantly uncorrelated amplitude and
frequency variations over time. Some possible origins and interesting issues are
proposed to scheme further research of this hidden corner in current
asteroseismology.
FX UMa: A New Heartbeat Binary System with Linear and Nonlinear Tidal Oscillations and δ Sct Pulsations
Authors: Wang 王 Kun 坤 , Ren 任 Anbing 安炳 , Andersen Mads Fredslund , Grundahl Frank , Chen 陈 Tao 涛 , Pallé Pere L. 
Published: July 2023

Abstract
We present a detailed analysis of an eclipsing double-lined binary FX UMa based on TESS photometry and newly acquired spectroscopic observations. The radial velocities and atmospheric parameters for each component star are obtained from the SONG high-resolution spectra. Combined with the radial-velocity measurements, our light-curve modeling yields absolute masses and radii of the two components. The Fourier amplitude spectrum of the residual light curve reveals a total of 103 frequencies with signal-to-noise ratio (S/N) ≥ 4, including 12 independent frequencies, 17 multiples of the orbital frequency (Nf
orb), and 74 combination frequencies. Ten Nf
orb peaks with S/N > 10 have very high amplitudes and are likely due to tidally excited oscillations (TEOs). The remaining Nf
orb peaks (4 ≤ S/N ≤ 10) may be originated from the imperfect removal, or they are actually real TEOs. Four anharmonic frequencies can pair up and sum to give exact harmonics of the orbital frequency, suggesting the existence of nonlinear tidal processes in the eccentric binary system FX UMa. Eight independent frequencies in the range of 20–32 day−1 are typical low-order pressure modes of δ Scuti pulsators.
A Spectroscopic Thermometer: Individual Vibrational Band Spectroscopy with the Example of OH in the Atmosphere of WASP-33b
Authors: Wright Sam O. M. , Nugroho Stevanus K. , Brogi Matteo , Gibson Neale P. , de Mooij Ernst J. W. , Waldmann Ingo , Tennyson Jonathan , Kawahara Hajime , Kuzuhara Masayuki , Hirano Teruyuki , Kotani Takayuki , Kawashima Yui , Masuda Kento , Birkby Jayne L. , Watson Chris A. , Tamura Motohide , Zwintz Konstanze , Harakawa Hiroki , Kudo Tomoyuki , Hodapp Klaus , Jacobson Shane , Konishi Mihoko , Kurokawa Takashi , Nishikawa Jun , Omiya Masashi , Serizawa Takuma , Ueda Akitoshi , Vievard Sébastien , Yurchenko Sergei N. 
Published: July 2023

Abstract
Individual vibrational band spectroscopy presents an opportunity to examine exoplanet atmospheres in detail, by distinguishing where the vibrational state populations of molecules differ from the current assumption of a Boltzmann distribution. Here, retrieving vibrational bands of OH in exoplanet atmospheres is explored using the hot Jupiter WASP-33b as an example. We simulate low-resolution spectroscopic data for observations with the JWST's NIRSpec instrument and use high-resolution observational data obtained from the Subaru InfraRed Doppler instrument (IRD). Vibrational band–specific OH cross-section sets are constructed and used in retrievals on the (simulated) low- and (real) high-resolution data. Low-resolution observations are simulated for two WASP-33b emission scenarios: under the assumption of local thermal equilibrium (LTE) and with a toy non-LTE model for vibrational excitation of selected bands. We show that mixing ratios for individual bands can be retrieved with sufficient precision to allow the vibrational population distributions of the forward models to be reconstructed. A fit for the Boltzmann distribution in the LTE case shows that the vibrational temperature is recoverable in this manner. For high-resolution, cross-correlation applications, we apply the individual vibrational band analysis to an IRD spectrum of WASP-33b, applying an “unpeeling” technique. Individual detection significances for the two strongest bands are shown to be in line with Boltzmann-distributed vibrational state populations, consistent with the effective temperature of the WASP-33b atmosphere reported previously. We show the viability of this approach for analyzing the individual vibrational state populations behind observed and simulated spectra, including reconstructing state population distributions.
K2 Optical Emission from OJ 287 and Other γ-Ray Blazars on Hours-to-weeks Timescales from 2014 to 2018
Authors: Wehrle Ann E. , Carini Michael , Wiita Paul J. , Pepper Joshua , Gaudi B. Scott , Pogge Richard W. , Stassun Keivan G. , Villanueva Steven 
Published: July 2023

Abstract
We present second observations by K2 of OJ 287 and seven other γ-ray active galactic nuclei (AGNs) obtained in 2017–2018, second and third observations of the lobe-dominated, steep-spectrum quasar 3C 207, and observations of nine additional blazars not previously observed with K2. The AGNs were observed simultaneously with K2 and the Fermi Large Area Telescope for 51–81 days. Our full sample, observed in 2014–2018, contained 16 BL Lacertae objects (BL Lacs), nine flat-spectrum radio quasars (FSRQs), and four other γ-ray AGNs. Twelve BL Lacs and seven FSRQs exhibited fast, jagged light curves, while four BL Lacs and two FSRQs had slow, smooth light curves. Some objects changed their red-noise character significantly between repeated K2 observations. The optical characteristics of OJ 287 derived from the short-cadence K2 light curves changed between observations made before and after the predicted passage of the suspected secondary supermassive black hole through the accretion disk of the primary supermassive black hole. The average slopes of the periodogram power spectral densities of the BL Lacs’ and FSRQs’ light curves differed significantly, by ≈12%, with the BL Lac slopes being steeper, and a Kolmogorov–Smirnov test with a p-value of 0.039 indicates that these samples probably come from different populations; however, this result is not as strongly supported by power spectral response (PSRESP) analyses. Differences in the origin of the jets from the ergosphere or accretion disk in these two classes could produce such a disparity, as could different sizes or locations of emission regions within the jets.
Kinetic Alfvén Waves Excited by Multiple Free Energy Sources in the Magnetotail
Authors: Barik K. C. , Singh S. V. , Lakhina G. S. 
Published: July 2023

Abstract
The generation of kinetic Alfvén waves (KAWs) is investigated through a three-component theoretical model incorporating ion beam and velocity shear as the sources of free energy in a non-Maxwellian κ-distributed plasmas. The model considers Maxwellian distributed background ions, drifting-Maxwellian beam ions, and κ-electrons as its constituent species. It is found that the combination of either positive velocity shear with counter-streaming beam ions or parallel streaming beam ions with negative velocity shear favors the excitation of KAWs. The effect of the κ-parameter on the excitation of KAWs under the combined energy sources is explored. The effect of plasma parameters such as number density, propagation angle, and temperature of plasma species on the real frequency and the growth rate of KAWs are examined. For the plasma parameters pertinent to the magnetotail region of Earth’s magnetosphere, the model is able to produce KAWs in the frequency range of ≈(5–67) mHz, which matches well with the recent ‘Time History of Events and Macroscale Interactions during Substorms (THEMIS)’ observations in the near-Earth magnetotail region.
A Cross-correlation Study between IceCube Neutrino Events and the FERMI Unresolved Gamma-Ray Sky
Authors: Negro Michela , Crnogorčević Milena , Burns Eric , Charles Eric , Marcotulli Lea , Caputo Regina 
Published: July 2023

Abstract
With the coincident detections of electromagnetic radiation together with gravitational waves (GW170817) or neutrinos (TXS 0506+056), the new era of multimessenger astrophysics has begun. Of particular interest are the searches for correlation between the high-energy astrophysical neutrinos detected by the IceCube Observatory and gamma-ray photons detected by the Fermi Large Area Telescope (LAT). So far, only sources detected by the LAT have been considered in correlation with IceCube neutrinos, neglecting any emission from sources too faint to be resolved individually. Here we present the first cross-correlation analysis considering the unresolved gamma-ray background (UGRB) and IceCube events. We perform a thorough sensitivity study, and, given the lack of identified correlation, we place upper limits on the fraction of the observed neutrinos that would be produced in proton–proton or proton–γ interactions from the population of sources contributing to the UGRB emission and dominating its spatial anisotropy (aka blazars). Our analysis suggests that, under the assumption that there is no intrinsic cutoff and/or hardening of the spectrum above Fermi-LAT energies, and that all gamma rays from the unresolved blazars dominating the UGRB fluctuation field are produced by neutral pions from p–p (p–γ) interactions, up to 60% (30%) of such a population may contribute to the total neutrino events observed by IceCube. This translates into an O (1%) maximum contribution to the astrophysical high-energy neutrino flux observed by IceCube at 100 TeV.
Effects of Full-sphere Convection on M-dwarf Dynamo Action, Flux Emergence, and Spin-down
Authors: Bice Connor P. , Toomre Juri 
Published: July 2023

Abstract
We present an analysis of 21 global MHD simulations of the dynamo action taking place in the interiors of fully convective M4 stars. We leverage our past work involving 45 simulations of shell-convecting-type M2 stars in a very similar parameter space to identify properties that their dynamos share and ways in which they differ. We find that the parameter scalings of many fundamental dynamo measures including the ratio of magnetic to kinetic energy and the cycle period are shared not only between the two sets of M-dwarf models but also with the broader literature on K and G dwarfs, suggesting that their convective dynamos are similar in nature. We find that the surface fields of the fully convective stars are stronger and more organized than those in the shell-convecting models and indicate faster spin-down than is observed, for which we suggest possible remediations. We note an abundance of dynamo states that are localized within one hemisphere at a time and find that such states are well described by a quasi-linear superposition of even- and odd-parity eigenmodes with similar amplitudes. We observe that the turbulent stirring of the deep fields of the fully convective models allows them to attain far higher peak amplitudes than those in the tachoclines of the partially convective models. We employ our AI-enabled pipeline, LoopNet, to search for buoyant, fibril magnetic fields in the simulated stars and find nearly twice as many such structures forming in the M4 models, in good agreement with observed differences in their flaring rates.
The Dragonfly Galaxy. III. Jet Brightening of a High-redshift Radio Source Caught in a Violent Merger of Disk Galaxies
Authors: Lebowitz Sophie , Emonts Bjorn , Terndrup Donald M. , Burchett Joseph N. , Prochaska J. Xavier , Drouart Guillaume , Villar-Martín Montserrat , Lehnert Matthew , De Breuck Carlos , Vernet Joël , Alatalo Katherine 
Published: July 2023

Abstract
The Dragonfly galaxy (MRC 0152-209), the most infrared-luminous radio galaxy at redshift z ∼ 2, is a merger system containing a powerful radio source and large displacements of gas. We present kiloparsec-resolution data from the Atacama Large Millimeter/submillimeter Array and the Very Large Array of carbon monoxide (6−5), dust, and synchrotron continuum, combined with Keck integral field spectroscopy. We find that the Dragonfly consists of two galaxies with rotating disks that are in the early phase of merging. The radio jet originates from the northern galaxy and brightens when it hits the disk of the southern galaxy. The Dragonfly galaxy therefore likely appears as a powerful radio galaxy because its flux is boosted into the regime of high-z radio galaxies by the jet–disk interaction. We also find a molecular outflow of (1100 ± 550) M
⊙ yr−1 associated with the radio host galaxy, but not with the radio hot spot or southern galaxy, which is the galaxy that hosts the bulk of the star formation. Gravitational effects of the merger drive a slower and longer-lived mass displacement at a rate of (170 ± 40) M
⊙ yr−1, but this tidal debris contains at least as much molecular gas mass as the much faster outflow, namely M
H2 = (3 ± 1) × 109 (α
CO/0.8) M
⊙. This suggests that both the active-galactic-nucleus-driven outflow and mass transfer due to tidal effects are important in the evolution of the Dragonfly system. The Keck data show Lyα emission spread across 100 kpc, and C iv and He ii emission across 35 kpc, confirming the presence of a metal-rich and extended circumgalactic medium previously detected in CO(1–0).
Voyager Observations of Electron Densities in the Very Local Interstellar Medium
Authors: Kurth W. S. , Burlaga L. F. , Kim T. , Pogorelov N. V. , Granroth L. J. 
Published: July 2023

Abstract
The two Voyager spacecraft have now been immersed in the very local interstellar medium for several years. Both spacecraft carry a plasma wave instrument capable of detecting plasma waves that yield electron density through the determination of the electron plasma frequency. Recent observations by Voyager 1 show increases in density at shocks and pressure fronts that are commensurate with increases in the magnetic field at these structures. Voyager 1 has not observed electron plasma oscillations, thought to be a signature of a nearby shock, since 2019, although Voyager 2 continues to observe these as recently as 2022 November. Voyager 1 also detects a faint thermal emission at the electron plasma frequency that shows the evolution of the plasma density as Voyager moves deeper into the medium. Here, we show the most recent observations from both Voyagers showing the increasing densities in the region upstream of the heliopause. We also investigate the fate of solar transients as they move ever deeper into the interstellar medium.
Cosmological Information in the Marked Power Spectrum of the Galaxy Field
Authors: Massara Elena , Villaescusa-Navarro Francisco , Hahn ChangHoon , Abidi Muntazir M. , Eickenberg Michael , Ho Shirley , Lemos Pablo , Dizgah Azadeh Moradinezhad , Blancard Bruno Régaldo-Saint 
Published: July 2023

Abstract
Marked power spectra are two-point statistics of a marked field obtained by weighting each location with a function that depends on the local density around that point. We consider marked power spectra of the galaxy field in redshift space that up-weight low-density regions, and we perform a Fisher matrix analysis to assess the information content of this type of statistics using the Molino mock catalogs built on the Quijote simulations. We identify four different ways to up-weight the galaxy field, and we compare the Fisher information contained in their marked power spectra to that of the standard galaxy power spectrum, when considering the monopole and quadrupole of each statistic. Our results show that each of the four marked power spectra can tighten the standard power spectrum constraints on the cosmological parameters Ω
m
, Ω
b
, h, n

s
, and M

ν
by 15%–25% and on σ
8 by a factor of 2. The same analysis performed by combining the standard and four marked power spectra shows a substantial improvement compared to the power spectrum constraints that is equal to a factor of 6 for σ
8 and a factor of 2.5–3 for the other parameters. Our constraints may be conservative, since the galaxy number density in the Molino catalogs is much lower than the ones in future galaxy surveys, which will allow them to probe lower-density regions of the large-scale structure.
From the External to the Internal Dynamics of the Neutron Star: The Exotic Braking Indices of PSR B0540−69
Authors: Rusul Abdujappar , Zheng Xiao-Ping 
Published: July 2023

Abstract
The braking index is of great importance for interpreting the spin-down mechanism of pulsar rotation. The sudden spin-down rate transition of PSR B0540−69, the lowest braking index n = 0.031, and its variations up to 1.2 in its later phases, without glitches or changes in X-ray pulsed flux or shape, are the most enigmatic problem that challenges our understanding of the correlation between pulsar spin-down and magnetospheric emission. Here we discuss the above issue on the external and internal grounds of pulsar dynamics. It is found that the increase of the open field line region of the pulsar magnetosphere would give a plausible explanation for the state transition and the braking index of 0.031 of PSR B0540−69, and changes in the moment of inertia of PSR B0540−69 after the state transition may account for the variable braking indices in its subsequent phases. Results indicate that, on the one hand, a change in the magnetosphere size of a pulsar would influence the external braking torque and have a substantial impact on the observed braking index; and, on the other hand, a sudden change in external torque may trigger the mechanism that could slowly increase the moment of inertia of the pulsar and cause an observable effect on the spin frequency second derivatives. This is hardly explained under the regular glitch hypothesis. In this respect, PSR B0540−69 would be the ideal candidate to study the inside and outside dynamics of a pulsar.