five

Data from the IRAM-30m Large Program `Astrochemical Surveys At IRAM' (ASAI)

收藏
NIAID Data Ecosystem2026-03-12 收录
下载链接:
https://zenodo.org/record/4591773
下载链接
链接失效反馈
官方服务:
资源简介:
Dataset for the ASAI IRAM-30m Large Program (https://www.iram-institute.org/EN/content-page-344-7-158-240-344-0.html) provided in zenodo within the framework of ACO (AstroChemical Origins): (H2020 MSCA ITN, GA:811312) The reference article is Lefloch et al. 2018, Monthly Notices of the Royal Astronomical Society, Volume 477, Issue 4, p.4792-4809 whose doi is: 10.1093/mnras/sty937 Fully reduced spectral line surveys are included for 10 young stellar objects.  SOURCE SAMPLE:  ---------------------------------------------------------------------------------------------------------------- Sources     alpha(2000)    delta(2000)    rms       rms       rms       dnu      Comment                                                 (3mm)     (2mm)    (1.3mm)     kHz ---------------------------------------------------------------------------------------------------------------- L1544        05h04m17.2s    25d10'42.8"   2.1-7.0        -          -          48.8    Evolved prestellar core TMC1        04h41m41.9s    25d41'27.1"   3.0-6.3   4.2-4.2         -       48.8, 195.3    Early prestellar core B1        03h33m20.8s    31d07'34.0"   2.5-10.6  4.4-8.0      4.2-4.6   195.3    First hydrostatic core IRAS4A        03h29m10.4s    31d13'32.2"   2.5-3.4    5.0-6.1      4.6-3.9   195.3    Class 0: Hot corino prototype L1527        04h39m53.9s    26d03'11.0"   2.1-6.7    4.2-7.1      4.6-4.1   195.3    Class 0: WCCC prototype L1157mm        20h39m06.3s    68d02'15.8"   3.0-4.7    5.0-6.5      3.8-3.5   195.3    Class 0: WCCC SVS13A        03h29m03.7s    31d16'03.8"   2.0-4.8    4.2-5.1      4.6-4.3   195.3    Class I: Hot corino AB Aur        04h55m45.8s    30d33'33.0"   4.6-4.3    4.8-3.9      2.1-4.3   195.3    Protoplanetary disk L1448-R2    03h25m40.1s    30d43'31.0"   2.8-4.9    6.0-9.7      2.9-4.9   195.3    Outflow shock spot L1157-B1    20h39m10.2s    68d01'10.5"   1.1-2.9    4.6-7.2      2.1-4.2   195.3    Outflow shock spot ------------------------------------------------------------------------------------------------------------------ i)spectral coverage, spectral resolution, and range of rms noise achieved in an element of 1 km/s for each spectral window.  The rms values (in TA*) are measured in the range 86-87 GHz and 113-114 GHz at 3mm, 132-133 GHz and 169-170 GHz at 2mm,  220-221 and 260-261 GHz. ii) No data were obtained at 2mm and 1.3mm for L1544, at 3mm and 1.3mm for TMC1.  iii) Complementary observations in the band 72-80 GHz have been obtained for L1544 and protostars IRAS4A, L1527, L1157mm,  SVS13A. The 72-80 GHz and 106-115 GHz data of L1544 will be made available in a forthcoming release iv) The data of AB Aur will be made available in a forthcoming release OBSERVATIONS AND SPECTRAL COVERAGE: Details about the observing procedure and the calibration can be found in the article presenting ASAI: "Astrochemical evolution  along star formation: Overview of the IRAM Large Program ASAI" (Lefloch, Bachiller et al. 2017). L1544      80.0 - 106.0 GHz TMC1      130.0 - 164.9 GHz ; gap from 161.6 to 163.0 GHz   Barnard1   80.5 - 112.2 GHz             130.0 - 172.7 GHz             200.5 - 276.0 GHz   IRAS4A     71.7 -  79.6 GHz              80.5 - 112.3 GHz             125.5 - 133.3 GHz             130.0 - 172.8 GHz             200.5 - 276.0 GHz   L1527      71.7 -  79.6 GHz             80.5 - 112.3 GHz            125.5 - 133.3 GHz            130.0 - 172.8 GHz            200.5 - 276.0 GHz  L1157mm    71.7 -  79.6 GHz             80.5 - 112.3 GHz            125.5 - 133.3 GHz            130.0 - 172.8 GHz            200.5 - 276.0 GHz  SVS13A     71.7 -  79.6 GHz             80.5 - 116.0 GHz            125.5 - 133.3 GHz                   130.0 - 172.8 GHz            200.5 - 276.0 GHz  L1448-R2   80.5 - 116.0 GHz            130.0 - 173.3 GHz            200.5 - 276.0 GHz  L1157-B1   71.7 -  79.5 GHz             78.0 - 118.0 GHz; fts 390 kHz res;           125.5 - 133.3 GHz            128.2 - 173.7 GHz            200.2 - 265.5 GHz; fts 781 kHz res;           260.4 - 322.1 GHz; WILMA 2 MHz res:            328.4 - 350.1 GHz; WILMA 2 MHz res;  The data obtained for each source are located in the corresponding subdirectory:  source_f1_f2.fits    : calibrated spectral band in the band f1 - f2 (in GHz)   source_72_80.fits    : complementary data in the bands 72-80 GHz  whenever observed.  source_125_133.fits  : complementary data in the band 125.5-133.5 whenever observed. UNITS: The line intensity are expressed  in units of antenna temperature corrected for atmospheric attenuation and the coupling with  the sky, TA*, by default. The interested user should to the IRAM webpage http://www.iram.es/IRAMES/mainWiki/Iram30mEfficiencies  to convert line intensities from antenna to main-beam temperature scale.  QUESTIONS and ACKNOWLEDGMENTS If you have any questions about the data please contact us (bertrand.lefloch@univ-grenoble-alpes.fr, r.bachiller@oan.es). We also like to hear about any scientific use of the data and would appreciate acknowledgment in publications or talks using the ASAI data.
创建时间:
2021-03-12
5,000+
优质数据集
54 个
任务类型
进入经典数据集
二维码
社区交流群

面向社区/商业的数据集话题

二维码
科研交流群

面向高校/科研机构的开源数据集话题

数据驱动未来

携手共赢发展

商业合作