Faint warm debris disks around nearby bright stars explored by AKARI and IRSF
Faint warm debris disks around nearby bright stars explored by AKARI and IRSF
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AKARI 和 IRSF 探索了附近明亮恒星周围微弱的温暖碎片盘
DOI：
10.1051/0004-6361/201526215
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发表时间：
2017
影响因子：
6.5
通讯作者：
Takashi
中科院分区：
文献类型：
--
作者：
Ishihara;Daisuke; Takeuchi;Nami; Kobayashi;Hiroshi; Nagayama;Takahiro; Kaneda;Hidehiro; Inutsuka;Shu-ichiro; Fujiwara;Hideaki; Onaka;Takashi
碎片盘是了解行星系统形成过程的重要观测线索。特别是，微弱的温暖的碎片磁盘可能与后期行星形成近1 Au。系统地寻找微弱温暖的碎片盘是揭示类地行星形成的必要条件。目的微弱温暖的碎片盘显示出在中红外波长处达到峰值的过量发射。因此，我们探索碎片盘使用AKARI中红外全天空点源目录（PSC），第二代无偏红外全天空survey.MethodsWe的产品调查红外过量发射678孤立的主序星，其中有18μm的检测在AKARI中红外全天空目录通过比较他们的通量与预测通量的光球的基础上光学近红外通量和模型光谱。首先从2 MASS PSC获取近红外通量。然而，在我们的样本中，286颗Ks < 4.5的恒星在2 MASS测光中由于饱和而具有较大的通量误差。在南非的φ1.4 m近红外望远镜IRSF上，应用中性密度（ND）滤光片，对J、H、Ks波段的通量进行了精确测量，平均精度从14%提高到1.8%。这项工作的碎片盘的检测率为~ 8%，这是可比的，在以前的作品由SpitzerandHerschel. Conclusions本研究的重要性是微弱的温暖碎片盘附近的场星周围的检测。至少有9个天体有大量的尘埃，这是传统的稳态碰撞级联模型无法解释的。
ContextDebris disks are important observational clues for understanding planetary-system formation process. In particular, faint warm debris disks may be related to late planet formation near 1 au. A systematic search of faint warm debris disks is necessary to reveal terrestrial planet formation.AimsFaint warm debris disks show excess emission that peaks at mid-IR wavelengths. Thus we explore debris disks using the AKARI mid-IR all-sky point source catalog (PSC), a product of the second generation unbiased IR all-sky survey.MethodsWe investigate IR excess emission for 678 isolated main-sequence stars for which there are 18μm detections in the AKARI mid-IR all-sky catalog by comparing their fluxes with the predicted fluxes of the photospheres based on optical to near-IR fluxes and model spectra. The near-IR fluxes are first taken from the 2MASS PSC. However, 286 stars withKs < 4.5 in our sample have large flux errors in the 2MASS photometry due to saturation. Thus we have measured accurateJ,H, andKs band fluxes, applying neutral density (ND) filters for Simultaneous InfraRed Imager for Unbiased Survey (SIRIUS) on IRSF, theφ1.4 m near-IR telescope in South Africa, and improved the flux accuracy from 14% to 1.8% on average.ResultsWe identified 53 debris-disk candidates including eight new detections from our sample of 678 main-sequence stars. The detection rate of debris disks for this work is ~8%, which is comparable with those in previous works bySpitzerandHerschel.ConclusionsThe importance of this study is the detection of faint warm debris disks around nearby field stars. At least nine objects have a large amount of dust for their ages, which cannot be explained by the conventional steady-state collisional cascade model.
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金属丰度、碎片盘和行星
DOI：
10.1111/j.1365-2966.2005.09848.x
发表时间：
2006
影响因子：
4.8
作者：
J. Greaves;D. Fischer;M. Wyatt
通讯作者：
M. Wyatt
普朗克 2013 年结果。
DOI：
10.1051/0004-6361/201321562
发表时间：
2013
期刊：
The Astrophysical Journal
影响因子：
--
作者：
P. Ade;N. Aghanim;C. Armitage;M. Arnaud;M. Ashdown;F. Atrio;J. Aumont;C. Baccigalupi;A. Banday;R. B. Barreiro;J. G. Bartlett;E. Battaner;K. Benabed;A. Benoit;A. Benoit;J. Bernard;M. Bersanelli;P. Bielewicz;J. Bobin;J. Bock;A. Bonaldi;J. Bond;J. Borrill;F. Bouchet;F. Boulanger;M. Bridges;M. Bucher;C. Burigana;R. Butler;J. Cardoso;A. Catalano;A. Chamballu;R. Chary;X. Chen;H. Chiang;L. Chiang;P. Christensen;S. Church;D. Clements;J. Colley;S. Colombi;L. Colombo;F. Couchot;A. Coulais;B. Crill;A. Curto;F. Cuttaia;L. Danese;R. Davies;P. De Bernardis;A. de Rosa;G. De Zotti;J. Delabrouille;J. Delouis;F. Désert;C. Dickinson;J. M. Diego;H. Dole;S. Donzelli;O. Doré;M. Douspis;X. Dupac;G. Efstathiou;T. Ensslin;H. Eriksen;F. Finelli;O. Forni;M. Frailis;A. Fraisse;E. Franceschi;S. Galeotta;K. Ganga;M. Giard;Y. Giraud;J. González;K. Górski;S. Gratton;A. Gregorio;A. Gruppuso;F. Hansen;D. Hanson;D. Harrison;G. Helou;S. Henrot;C. Hernández;D. Herranz;S. Hildebrandt;E. Hivon;M. Hobson;W. Holmes;A. Hornstrup;W. Hovest;K. Huffenberger;A. Jaffe;T. R. Jaffe;W. Jones;M. Juvela;E. Keihänen;R. Keskitalo;T. Kisner;R. Kneissl;J. Knoche;L. Knox;M. Kunz;H. Kurki;G. Lagache;A. Lähteenmäki;J. Lamarre;A. Lasenby;R. Laureijs;C. Lawrence;R. Leonardi;J. Lesgourgues;M. Liguori;P. Lilje;M. Linden;M. López;P. Lubin;J. Macı́as;B. Maffei;D. Maino;N. Mandolesi;M. Maris;D. Marshall;P. Martin;E. Martinez;S. Masi;M. Massardi;S. Matarrese;F. Matthai;P. Mazzotta;P. Meinhold;A. Melchiorri;L. Mendes;A. Mennella;M. Migliaccio;S. Mitra;M. Miville;A. Moneti;L. Montier;G. Morgante;D. Mortlock;S. Mottet;D. Munshi;J. A. Murphy;P. Naselsky;F. Nati;P. Natoli;C. Netterfield;H. Nørgaard;F. Noviello;D. Novikov;I. Novikov;S. Osborne;C. O'Sullivan;C. A. Oxborrow;F. Paci;L. Pagano;F. Pajot;R. Paladini;D. Paoletti;F. Pasian;G. Patanchon;O. Perdereau;L. Perotto;F. Perrotta;F. Piacentini;M. Piat;E. Pierpaoli;D. Pietrobon;S. Plaszczynski;E. Pointecouteau;A. Polegre;G. Polenta;N. Ponthieu;L. Popa;T. Poutanen;G. Pratt;G. Prézeau;S. Prunet;J. Puget;J. Rachen;W. Reach;R. Rebolo;M. Reinecke;M. Remazeilles;C. Renault;S. Ricciardi;T. Riller;I. Ristorcelli;G. Rocha;C. Rosset;G. Roudier;M. Rowan;B. Rusholme;M. Sandri;D. Santos;G. Savini;D. Scott;M. Seiffert;E. Shellard;G. Smoot;L. Spencer;J. Starck;V. Stolyarov;R. Stompor;R. Sudiwala;F. Sureau;D. Sutton;A.;J. Sygnet;J. Tauber;D. Tavagnacco;L. Terenzi;L. Toffolatti;M. Tomasi;M. Tristram;M. Tucci;J. Tuovinen;G. Umana;L. Valenziano;J. Valiviita;B. van Tent;P. Vielva;F. Villa;N. Vittorio;L. Wade;B. Wandelt;D. Yvon;A. Zacchei;A. Zonca
通讯作者：
A. Zonca
巨大的撞击和类地行星的形成
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
Genda;Kokubo;Ida
通讯作者：
Ida
Spitzer 24 μm 疏散星团 IC 2391 观测和 FGK 恒星碎片盘演化
DOI：
10.1086/509042
发表时间：
2006
期刊：
The Astrophysical Journal
影响因子：
--
作者：
N. Siegler;J. Muzerolle;E. Young;G. Rieke;E. Mamajek;D. Trilling;N. Gorlova;K. Su
通讯作者：
K. Su
论碎片盘与行星之间的关系
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
Á. Kóspál;D. Ardila;A. Mo'or;P. Ábrahám
通讯作者：
P. Ábrahám