Zobrazeno 1 - 10
of 5 323
pro vyhledávání: '"Wolak A"'
A Riemannian metric on a closed manifold is said to be geometrically formal if the wedge product of any two harmonic forms is harmonic; equivalently, the interior product of any two harmonic forms is harmonic. Given a Riemannian foliation on a closed
Externí odkaz:
http://arxiv.org/abs/2405.10867
Autor:
Bartkiewicz, A., Sanna, A., Szymczak, M., Moscadelli, L., van Langevelde, H. J., Wolak, P., Kobak, A., Durjasz, M.
Publikováno v:
A&A 686, A275 (2024)
Methanol masers at 6.7~GHz are well-known signposts of high-mass star-forming regions. [...] We aim to understand the origin of the ring-like structures outlined by methanol maser emission in a number of sources. This emission could be, a priori, spa
Externí odkaz:
http://arxiv.org/abs/2404.07333
Autor:
Szymczak, M., Durjasz, M., Goedhart, S., Wolak, P., Bartkiewicz, A., Garatti, A. Caratti o, Kobak, A., Massi, F.
Aims: We report the discovery and analysis of a periodic methanol maser in the massive protostar IRAS 20216+4104. Methods: To obtain the light curve, we used the 6.7 GHz methanol maser spectra collected between 2000-2003 and 2009-2023 with the Harteb
Externí odkaz:
http://arxiv.org/abs/2312.01978
Autor:
Frequencies, Committee on Radio Astronomy, Winkel, Benjamin, Garrington, Simon, Colomer, Francesco, Madkour, Waleed, Slowikowska, Agnieszka, Bolli, Pietro, Lindqvist, Michael, López-Pérez, José Antonio, Tangen, Leif Morten, Thomas, Ivan, Thomasson, Peter, Witvers, Roel, McCauley, Joe, Bautista, Marta, Bergano, Miguel, Bezrukovs, Vladislavs, Giovanardi, Fabio, Hase, Hayo, Jiricka, Karel, Józsa, Gyula I. G., Kallunki, Juha, Marqué, Christophe, McKay, Derek, Murk, Axel, Pietu, Vincent, Tornatore, Vincenza, Sethole, Busang, Soida, Marian, Sorokin, Boris, Tan, Gie Han, Tiplady, Adrian, Tóth, L. Viktor, Di Vruno, Federico, Wampfler, Susanne, Williams, Andrew, Yerin, Serge, Bray, Justin, Jessner, Axel, Gizani, Nectaria, Monstein, Christian, Peel, Mike, Ferreira, João Salmim, Smith, Harry, Veldes, Giorgios P., Wolak, Pawel
The Committee on Radio Astronomy Frequencies (CRAF) is an Expert Committee of the European Science Foundation. It aims to provide a cost-effective single voice on frequency protection issues for European radio astronomy observatories and research ins
Externí odkaz:
http://arxiv.org/abs/2310.13407
Starting with a manifold $M$ and a semi-free action of $S^3$ on it, we have the Smith-Gysin sequence: $$ \cdots \to H^{*}( M) \to H^{*-3}(M/S^3, M^{S^3}) \oplus H^{*} (M^{S^3}) \to H^{*+1}(M/S^3, M^{S^3}) \to H^{*+1}(M) \to \cdots $$ In this paper, w
Externí odkaz:
http://arxiv.org/abs/2310.04309
The Hard Lefschetz Property (HLP) has recently been formulated in the context of isometric flows without singularities on manifolds. In this category, two versions of the HLP (transverse and not) have been proven to be equivalent, thus generalizing w
Externí odkaz:
http://arxiv.org/abs/2310.00466
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract High-dose inhaled Nitric Oxide (iNO) has been shown to have anti-inflammatory, vasodilator, and antimicrobial properties, resulting in improved arterial oxygenation as well as a beneficial therapeutic effect on lower respiratory tract infect
Externí odkaz:
https://doaj.org/article/17bf21ccf6aa4481a7679dd751dd4814
Autor:
Kirsten, F., Ould-Boukattine, O., Herrmann, W., Gawronski, M., Hessels, J., Lu, W., Snelders, M., Chawla, P., Yang, J., Blaauw, R., Nimmo, K., Puchalska, W., Wolak, P., van Ruiten, R.
Fast radio bursts (FRBs) are extremely energetic, millisecond-duration radio flashes that reach Earth from extragalactic distances. Broadly speaking, FRBs can be classified as repeating or (apparently) non-repeating. It is still unclear, however, whe
Externí odkaz:
http://arxiv.org/abs/2306.15505
Autor:
Kobak, A., Bartkiewicz, A., Szymczak, M., Olech, M., Durjasz, M., Wolak, P., Chibueze, J. O., Hirota, T., Eislöffel, J., Stecklum, B., Sobolev, A., Bayandina, O., Orosz, G., Burns, R. A., Kim, Kee-Tae, Heever, S. P. van den
Publikováno v:
A&A 671, A135 (2023)
Recent studies have shown that 6.7 GHz methanol maser flares can be a powerful tool for verifying the mechanisms of maser production and even the specific signatures of accretion rate changes in the early stages of high-mass star formation. We charac
Externí odkaz:
http://arxiv.org/abs/2302.02723
Publikováno v:
Journal of Environmental Economics and Management Volume 105, 2021, 102398
The negative demand shock due to the COVID-19 lockdown has reduced net demand for electricity -- system demand less amount of energy produced by intermittent renewables, hydroelectric units, and net imports -- that must be served by controllable gene
Externí odkaz:
http://arxiv.org/abs/2211.02196