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No Significant Redshift Evolution in the Intrinsic Scatter of the M •–M ⋆ Relation for Overmassive Black Holes 超大质量黑洞的 M -M ⋆ 关系的本征散射没有显著的红移演变
Research notes of the AAS Pub Date : 2024-06-03 DOI: 10.3847/2515-5172/ad530c
Carl Audric Guia and Fabio Pacucci
{"title":"No Significant Redshift Evolution in the Intrinsic Scatter of the M •–M ⋆ Relation for Overmassive Black Holes","authors":"Carl Audric Guia and Fabio Pacucci","doi":"10.3847/2515-5172/ad530c","DOIUrl":"https://doi.org/10.3847/2515-5172/ad530c","url":null,"abstract":"In the local Universe, the ratio between the mass of a central black hole and the stellar mass of its host galaxy is ∼0.1%. Recently, JWST discovered numerous galaxies at z > 4 that seem to deviate from the local relation, with black holes overmassive by 10–100 times. Similar galaxies were also discovered at cosmic noon. The intrinsic scatter in the relation describes how much the evolutionary histories of the single galaxies deviate from the mean evolutionary pattern of their parent data set. This Research Note examines whether a cosmic evolution of the intrinsic scatter can be detected by assessing its value for data sets in various redshift ranges. Using data from the local Universe (z < 0.055), low (0.4 ≤ z ≤ 0.9), intermediate (0.9 ≤ z ≤ 4), and high (z > 4) redshift, we conclude that there is no statistically significant redshift evolution of the intrinsic scatter.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ASKAP-EMU Radio Emission from Type Ic Supernova SN1996aq in NGC 5584 NGC 5584中的Ic型超新星SN1996aq的ASKAP-EMU射电辐射
Research notes of the AAS Pub Date : 2024-06-03 DOI: 10.3847/2515-5172/ad527c
Hina Zakir, Miroslav D. Filipović, Luke Barnes, Bärbel S. Koribalski, Andrew M. Hopkins, Sanja Lazarević and Denis Leahy
{"title":"ASKAP-EMU Radio Emission from Type Ic Supernova SN1996aq in NGC 5584","authors":"Hina Zakir, Miroslav D. Filipović, Luke Barnes, Bärbel S. Koribalski, Andrew M. Hopkins, Sanja Lazarević and Denis Leahy","doi":"10.3847/2515-5172/ad527c","DOIUrl":"https://doi.org/10.3847/2515-5172/ad527c","url":null,"abstract":"We report the Australian Square Kilometre Array Pathfinder Evolutionary Map of the Universe survey detection of radio continuum emission from SN1996aq, a Type Ic supernova within the nearby face-on spiral galaxy NGC 5584. Analysis at multiple radio frequencies reveals radio emission coincident with SN1996aq. We find a flatter radio spectral index compared to the 2009 observations, indicating rapid evolution of SN1996aq. Conversely, no radio emission is observed from NGC 5584's other known supernova, SN2007af. Furthermore, we identified two other significant radio continuum regions with properties consistent with H ii regions.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Direct Imaging Detection of the Protoplanet AB Aur b at Wavelengths Covering Paβ 以覆盖 Paβ 的波长直接成像探测系外行星 AB Aur b
Research notes of the AAS Pub Date : 2024-05-29 DOI: 10.3847/2515-5172/ad50ce
Thayne Currie
{"title":"Direct Imaging Detection of the Protoplanet AB Aur b at Wavelengths Covering Paβ","authors":"Thayne Currie","doi":"10.3847/2515-5172/ad50ce","DOIUrl":"https://doi.org/10.3847/2515-5172/ad50ce","url":null,"abstract":"Recently, Biddle et al. claimed a non-detection of the protoplanet AB Aurigae b in Keck/NIRC2 Paβ imaging. I reprocess these newly public data and compare them to data from the extreme AO platform (SCExAO/CHARIS) used to discover AB Aur b. AB Aur b is decisively imaged with SCExAO/CHARIS at wavelengths covering Paβ. The Biddle et al. non detection of AB Aur b results from a far poorer image quality that is non competitive with SCExAO/CHARIS. Their contrast limits and thus constraints on accretion are overestimated due to an inaccurate AB Aur b source model. Irrespective of image quality, single-band Paβ imaging is ill suited to conclusively identify accretion onto AB Aur b. Instead, high-resolution Hα spectroscopy may provide accretion signatures. Aside from PDS 70, AB Aurigae remains the system with the strongest evidence for having a directly imaged protoplanet.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141195130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Abundance of Chlorine in the Atmosphere of HD 87240 HD 87240大气层中氯的丰度
Research notes of the AAS Pub Date : 2024-05-29 DOI: 10.3847/2515-5172/ad50d8
Roméo Veyry and Richard Monier
{"title":"The Abundance of Chlorine in the Atmosphere of HD 87240","authors":"Roméo Veyry and Richard Monier","doi":"10.3847/2515-5172/ad50d8","DOIUrl":"https://doi.org/10.3847/2515-5172/ad50d8","url":null,"abstract":"High resolution high signal-to-noise UVES spectra of the late B-type chemically peculiar star, HD 87240, a member of the NGC 3114 open cluster, have been synthesized to measure the abundance of chlorine, an element which is rarely found in late B-type stars. Sixteen lines of Cl ii are found and the mean chlorine overabundance is about 2.1 dex higher than the solar abundance, which is slightly lower than the chlorine excess in HR 1094, another chlorine-rich late B-type star.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"300 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141194963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Distribution of Satellites in the TNG100 Simulation based on Time Spent in Halo TNG100 模拟中卫星的分布（基于在 Halo 中花费的时间
Research notes of the AAS Pub Date : 2024-05-29 DOI: 10.3847/2515-5172/ad50d7
Bryanne McDonough and Reuben Dsouza
{"title":"The Distribution of Satellites in the TNG100 Simulation based on Time Spent in Halo","authors":"Bryanne McDonough and Reuben Dsouza","doi":"10.3847/2515-5172/ad50d7","DOIUrl":"https://doi.org/10.3847/2515-5172/ad50d7","url":null,"abstract":"An important test of the Λ Cold Dark Matter model is the degree to which galaxy dark matter halos follow the predicted, characteristic density profile. In this Note, we explore the use of satellite galaxies as luminous tracers of halo mass density profiles as a function of the time since they joined the halos. We perform this investigation in the TNG100 simulation, where we can obtain precise locations of satellite galaxies and dark matter particles. We find that, by adopting a more accurate definition of joining redshift compared to a previous investigation, the oldest satellites are better, but not perfect tracers of the dark matter distribution.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141195272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Background Contamination of the Project Hephaistos Dyson Spheres Candidates 赫菲斯托斯项目戴森球候选者的背景污染
Research notes of the AAS Pub Date : 2024-05-28 DOI: 10.3847/2515-5172/ad5017
Tongtian Ren, Michael A. Garrett and Andrew P. V. Siemion
{"title":"Background Contamination of the Project Hephaistos Dyson Spheres Candidates","authors":"Tongtian Ren, Michael A. Garrett and Andrew P. V. Siemion","doi":"10.3847/2515-5172/ad5017","DOIUrl":"https://doi.org/10.3847/2515-5172/ad5017","url":null,"abstract":"Project Hephaistos recently identified seven M-dwarfs as possible Dyson Spheres (DS) candidates. We have cross-matched three of these candidates (A, B and G) with radio sources detected in various all-sky surveys. The radio sources are offset from the Gaia stellar positions by ∼4.9, ∼0.4 and ∼5.″0 for candidates A, B, and G respectively. We propose that Dust obscured galaxies (DOGs) lying close to the line-of-sight of these M-dwarf stars significantly contribute to the measured WISE mid-IR flux densities in the WISE W3 and W4 wave bands. These three stars have therefore been misidentified as DS candidates. We also note that with an areal sky density of 9 × 10−6 per square arcsecond, Hot DOGs can probably account for the contamination of all 7 DS candidates drawn from an original sample of 5 million stars.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141173099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Consolidated Rotation Measure Catalog Update 更新综合轮换措施目录
Research notes of the AAS Pub Date : 2024-05-23 DOI: 10.3847/2515-5172/ad4e36
Anthony Nuñez, M. Tahani, S. E. Clark, E. Lopez-Rodriguez, C. V. Van Eck
{"title":"Consolidated Rotation Measure Catalog Update","authors":"Anthony Nuñez, M. Tahani, S. E. Clark, E. Lopez-Rodriguez, C. V. Van Eck","doi":"10.3847/2515-5172/ad4e36","DOIUrl":"https://doi.org/10.3847/2515-5172/ad4e36","url":null,"abstract":"\u0000 We identified discrepancies between the rotation measure (RM) catalogs by Clegg et al. and Minter & Spangler and their corresponding rows in the Van Eck et al. consolidated catalog. The discrepancies, in the case of Minter & Spangler, are caused by the improper coordinate conversions between J2000 and B1950 Equatorial coordinate systems used between the catalogs. The discrepancies associated with Clegg et al. are due to differences in the number of significant figures reported between the original and consolidated catalogs, which result in overlapping points in the consolidated catalog. These errors affect studies that rely on the accuracy of the coordinate data. After proper unit conversions, we found that coordinate values differed by up to 1° between the Minter & Spangler and consolidated catalogs. Employing a combination of manual data extraction and automated coordinate conversion tools, we corrected and updated those RM coordinate values to align with the standardized format used in the Van Eck et al. consolidated catalog.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"31 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141105363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Additional Note to “A New Insight into the Linear Theory of Magnetoacoustic Waves in the Homogeneous Flux Tubes with an Abrupt Boundary” 对 "具有突变边界的均质磁通管中磁声波线性理论的新见解 "的补充说明
Research notes of the AAS Pub Date : 2024-05-23 DOI: 10.3847/2515-5172/ad4e31
N. V. Yelagandula
{"title":"An Additional Note to “A New Insight into the Linear Theory of Magnetoacoustic Waves in the Homogeneous Flux Tubes with an Abrupt Boundary”","authors":"N. V. Yelagandula","doi":"10.3847/2515-5172/ad4e31","DOIUrl":"https://doi.org/10.3847/2515-5172/ad4e31","url":null,"abstract":"\u0000 This is to address the criticism expressed in the article (Goedbloed & Poedts 2024) referred to as GP[24] about the work (Yelagandula 2023) referred to as Y[23]. It will be shown that the dispersion relation obtained in Y[23] is indeed correct within the framework of the ZSER model discussed in Y[23] despite the correct criticism of GP[24] about the electrodynamic boundary condition.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"32 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141104138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recovering Data of an Observation of the Leonids in 1869 from the Lisbon Geophysical Observatory (Portugal) 从里斯本地球物理观测站（葡萄牙）恢复 1869 年观测狮子座流星群的数据
Research notes of the AAS Pub Date : 2024-05-23 DOI: 10.3847/2515-5172/ad4e38
A. J. P. Aparicio, J. M. Vaquero
{"title":"Recovering Data of an Observation of the Leonids in 1869 from the Lisbon Geophysical Observatory (Portugal)","authors":"A. J. P. Aparicio, J. M. Vaquero","doi":"10.3847/2515-5172/ad4e38","DOIUrl":"https://doi.org/10.3847/2515-5172/ad4e38","url":null,"abstract":"\u0000 The Leonid meteor shower is renowned for its scientific and public interest. In a search for meteorological data from Portuguese stations, records on an observation of the Leonids in 1869 from the Lisbon Geophysical Observatory “Infante Dom Luiz” were found. Given their potential value, a digital version with metadata is provided in the present note (the recovered data are available on doi:10.5281/zenodo.11221019). The observation took place from 9 PM on 1869 November 13 to 6 AM on November 14, local time in Lisbon, with mostly clear skies and 4–5 observers covering completely the sky. They recorded 1980 meteors, noting Zodiacal Light visibility and detailing meteor counts every five minutes.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"118 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141105583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
M-Dwarf Flare Candidates Simultaneously Observed by K2 and TESS K2和TESS同时观测到的M矮星耀斑候选者
Research notes of the AAS Pub Date : 2024-05-22 DOI: 10.3847/2515-5172/ad4d8b
Dylan S. Caudill, Thomas Slamecka, Jeffrey M. Gerber
{"title":"M-Dwarf Flare Candidates Simultaneously Observed by K2 and TESS","authors":"Dylan S. Caudill, Thomas Slamecka, Jeffrey M. Gerber","doi":"10.3847/2515-5172/ad4d8b","DOIUrl":"https://doi.org/10.3847/2515-5172/ad4d8b","url":null,"abstract":"\u0000 We present results of a study on the identification of M-dwarf flares using K2 and TESS data. Our sample includes objects observed simultaneously by these two missions, so that we can also compare how flares are identified in the two sets of data. We implement two open-source Python packages, Lightkurve and PyVAN, to work in unison to easily access the data and determine variability in the light curves of 39 M-dwarfs. We identified 13 flare detections in the TESS data while K2 did not provide any reliable detections of flares. We describe the shortcomings of the K2 data that prevented these flares from being identified.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"41 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141108734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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