Tootfinder

Unraveling the Feedback-Regulated Star Formation Activities around the Expanding Galactic MIR Bubble [HKS2019] E71
Aayushi Verma, Saurabh Sharma, Lokesh K. Dewangan, Tarak Chand, Ariful Hoque, Devendra K. Ojha, Harmeen Kaur, Ram Kesh Yadav, Mamta, Manojit Chakraborty, Archana Gupta
https://arxiv.org/abs/2507.13232

Unraveling the Feedback-Regulated Star Formation Activities around the Expanding Galactic MIR Bubble [HKS2019] E71
We explore the physical environment of the Galactic mid-infrared (MIR) bubble [HKS2019] E71 (hereafter E71) through a multi-wavelength approach. E71 is located at the edge of a filamentary structure, as traced in Herschel images (250-500 $μ$m), Herschel column density map, and molecular maps in the velocity range [-20,-14] km/s. It hosts a stellar cluster (radius~1.26 pc, distance~1.81+/-0.15 kpc) associated with radio continuum emission, including a centrally positioned B1.5-type massive star…

Abundances of P, S, and K in 58 bulge spheroid stars from APOGEE
B. Barbuy, H. Ernandes, A. C. S. Fria\c{c}a, M. S. Camargo, P. da Silva, S. O. Souza, T. Masseron, M. Brauner, D. A. Garcia-Hernandez, J. G. Fernandez-Trincado, K. Cunha, V. V. Smith, A. Peerez-Villegas, C. Chiappini, A. B. A. Queiroz, B. X. Santiago, T. C. Beers, F. Anders, R. P. Schiavon, M. Valentini, D. Minniti, D. Geisler, D. Souto, V. M. Placco, M. Zoccali, S. Feltzing, M. Schultheis, C. Nitschelm

Abundances of P, S, and K in 58 bulge spheroid stars from APOGEE
We have previously studied several elements in 58 selected bulge spheroid stars, based on spectral lines in the H-band. We now derive the abundances of the less-studied elements phosphorus (P; Z=15), sulphur (S; Z=16), and potassium (K; Z=19). The abundances of P, S, and K in 58 bulge spheroid stars are compared both with the results of a previous analysis of the data from the Apache Point Observatory Galactic Evolution Experiment (APOGEE), and with a few available studies of these elements. We…

Constraining quadrupole deformations with relativistic effects
Daniya Utepova, Kuantay Boshkayev, Serzhan Momynov, Anuar Idrissov, Gulzada Baimbetova, Hernando Quevedo, Ainur Urazalina
https://arxiv.org/abs/2506.10437

Constraining quadrupole deformations with relativistic effects
We investigate two general relativistic effects - namely, the Shirokov and Shapiro effects - within the framework of the Zipoy-Voorhees spacetime ($q$-metric), which generalizes the Schwarzschild solution by incorporating a quadrupole moment. By analyzing the geodesic deviation equations, we explore the oscillatory motion of test particles and demonstrate how the source's quadrupole parameter influences the Shirokov effect. Furthermore, we derive an expression for the Shapiro time delay in this…

Search for Higher Harmonic Signals from Close White Dwarf Binaries in the mHz Band
Naoki Seto
https://arxiv.org/abs/2506.23441 https://

Search for Higher Harmonic Signals from Close White Dwarf Binaries in the mHz Band
Space-based gravitational wave (GW) detectors, such as LISA, are expected to detect thousands of Galactic close white dwarf binaries emitting nearly monochromatic GWs. In this study, we demonstrate that LISA is reasonably likely to detect higher harmonic GW signals, particularly the $(l, |m|) = (3, 3)$ mode, from a limited sample of nearby close white dwarf binaries, even with small orbital velocities $v/c$ of order $10^{-3}$. The amplitudes of these post-Newtonian modes provide robus…